All Stories

  1. Can sugar taxes be used for financing surgical systems in Nigeria? A mixed-methods political economy analysis

    Article • Health Policy and Planning, March 2024, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  2. Understanding evidence ecosystems: What influences the production, translation, and use of modeled evidence in Burkina Faso, Nigeria, India, and Kenya?

    Article • Gates Open Research, December 2023, Faculty of 1000, Ltd.

    Professor Obinna Emmanuel Onwujekwe

  3. Examining multiple funding flows to public healthcare providers in low- and middle-income countries — results from case studies in Burkina Faso, Kenya, Morocco, Nigeria, Tunisia and Vietnam

    Article • Health Policy and Planning, November 2023, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  4. The nature, drivers and equity consequences of informal payments for maternal and child health care in primary health centres in Enugu, Nigeria

    Article • Health Policy and Planning, November 2023, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  5. Addressing security threats affecting primary healthcare service delivery and uptake in Nigeria

    Article • Australian Journal of Primary Health, January 2023, CSIRO Publishing

    Professor Obinna Emmanuel Onwujekwe

  6. An assessment of Nigeria’s health systems response to COVID-19

    Article • Ghana Medical Journal, September 2022, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  7. The gendered drivers of absenteeism in the Nigerian health system

    Article • Health Policy and Planning, July 2022, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  8. Can Strategic Health Purchasing Reduce Inefficiency and Corruption in the Health Sector? The Case of Nigeria

    Article • Health Systems & Reform, March 2022, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  9. Strategic Health Purchasing in Nigeria: Investigating Governance and Institutional Capacities within Federal Tax-Funded Health Schemes and the Formal Sector Social Health Insurance Programme

    Article • Health Systems & Reform, March 2022, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  10. Gender differences in informal payments for healthcare: evidence from 34 African countries

    Article • Health Policy and Planning, October 2021, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  11. Oral health-seeking behavior among different population groups in Enugu Nigeria

    Article • PLoS ONE, February 2021, PLOS

    Professor Obinna Emmanuel Onwujekwe

  12. Did an Intervention Programme Aimed at Strengthening the Maternal and Child Health Services in Nigeria Improve the Completeness of Routine Health Data Within the Health Management Information System?

    Article • International Journal of Health Policy and Management, December 2020, MaadRayan Publishing Company

    Professor Obinna Emmanuel Onwujekwe

  13. Analysis of cost burden of obstetric care among human immune-deficiency virus (HIV) positive women in Enugu metropolis, South-East Nigeria

    Article • Journal of Obstetrics and Gynaecology, August 2020, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe, Dr Joseph Tochukwu Enebe

  14. Where Do We Start? Building Consensus on Drivers of Health Sector Corruption in Nigeria and Ways to Address It

    Article • International Journal of Health Policy and Management, December 2019, MaadRayan Publishing Company

    Professor Obinna Emmanuel Onwujekwe

  15. Crowdfunding: An Alternative to Funding Women Entrepreneurs

    Article • South Asian Journal of Social Studies and Economics, November 2019, Sciencedomain International

    Professor Obinna Emmanuel Onwujekwe

  16. Governance of tuberculosis control programme in Nigeria

    Article • Infectious Diseases of Poverty, June 2019, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  17. Improving patient flows: A case study of a tertiary hospital radiology department

    Article • International Journal of Healthcare Management, May 2019, Taylor & Francis

    Felicitas Idigo, Professor Obinna Emmanuel Onwujekwe, Mark Okeji, Dr Angel-Mary Chukwunyelu Anakwue

  18. The economic burden of malaria in pregnancy: a cross-sectional study

    Article • The Journal of Maternal-Fetal & Neonatal Medicine, July 2018, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  19. The community is just a small circle: citizen participation in the free maternal and child healthcare programme of Enugu State, Nigeria

    Article • Global Health Action, January 2018, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  20. Implementation of free maternal and child healthcare policies: assessment of influence of context and institutional capacity of health facilities in South-east Nigeria

    Article • Global Health Action, January 2018, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  21. Investigating socio-economic inequity in access to and expenditures on routine immunization services in Anambra state

    Article • BMC Research Notes, February 2017, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  22. Acceptability and willingness to pay for telemedicine services in Enugu state, southeast Nigeria

    Article • Digital Health, January 2017, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  23. What Is the Economic Burden of Subsidized HIV/AIDS Treatment Services on Patients in Nigeria and Is This Burden Catastrophic to Households?

    Article • PLoS ONE, December 2016, PLOS

    Professor Obinna Emmanuel Onwujekwe

  24. The challenge of bridging the gap between researchers and policy makers: experiences of a Health Policy Research Group in engaging policy makers to support evidence informed policy making in Nigeria

    Article • Globalization and Health, November 2016, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  25. Political economy of decentralising HIV and AIDS treatment services to primary healthcare facilities in three Nigerian states

    Article • African Journal of AIDS Research, September 2016, Informa UK Limited

    Professor Obinna Emmanuel Onwujekwe

  26. Determining the disability adjusted life years lost to childhood and adolescence epilepsy in southeast Nigeria: An exploratory study

    Article • Epilepsy Research, September 2016, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  27. The effect of increasing the supply of skilled health providers on pregnancy and birth outcomes: evidence from the midwives service scheme in Nigeria

    Article • BMC Health Services Research, August 2016, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  28. Persistent barriers to care; a qualitative study to understand women’s experiences in areas served by the midwives service scheme in Nigeria

    Article • BMC Pregnancy and Childbirth, August 2016, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  29. Exploring the threshold premium for viable community based health insurance schemes in Nigeria

    Article • BMC Research Notes, August 2016, Springer Science + Business Media

    DR Emeka I Udeh, Professor Obinna Emmanuel Onwujekwe

  30. Integrated prevention of mother-to-child HIV transmission services, antiretroviral therapy initiation, and maternal and infant retention in care in rural north-central Nigeria: a cluster-randomised controlled trial

    Article • The Lancet HIV, May 2016, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  31. Analysing key influences over actors’ use of evidence in developing policies and strategies in Nigeria: a retrospective study of the Integrated Maternal Newborn and Child Health strategy

    Article • Health Research Policy and Systems, April 2016, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  32. Health policy and systems research and analysis in Nigeria: examining health policymakers’ and researchers’ capacity assets, needs and perspectives in south-east Nigeria

    Article • Health Research Policy and Systems, February 2016, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  33. Using Economic Evidence to Set Healthcare Priorities in Low-Income and Lower-Middle-Income Countries: A Systematic Review of Methodological Frameworks

    Article • Health Economics, January 2016, Wiley

    Professor Obinna Emmanuel Onwujekwe

  34. Socioeconomic inequities and payment coping mechanisms used in the treatment of type 2 diabetes mellitus in Nigeria

    Article • Nigerian Journal of Clinical Practice, January 2016, Medknow

    Dr Ijeoma L Okoronkwo, Professor Obinna Emmanuel Onwujekwe

  35. Examining geographic and socio-economic differences in outpatient and inpatient consumer expenditures for treating HIV/AIDS in Nigeria

    Article • Journal of the International AIDS Society, January 2016, Wiley

    Professor Obinna Emmanuel Onwujekwe

  36. Study protocol: realist evaluation of effectiveness and sustainability of a community health workers programme in improving maternal and child health in Nigeria

    Article • Implementation Science, December 2015, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  37. Role and use of evidence in policymaking: an analysis of case studies from the health sector in Nigeria

    Article • Health Research Policy and Systems, October 2015, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  38. A qualitative study on health workers’ and community members’ perceived sources, role of information and communication on malaria treatment, prevention and control in southeast Nigeria

    Article • BMC Infectious Diseases, October 2015, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  39. Investigating client perception and attitude to decentralization of HIV/AIDS treatment services to primary health centres in three Nigerian states

    Article • Health Expectations, August 2015, Wiley

    Professor Obinna Emmanuel Onwujekwe

  40. Effectiveness of Provider and Community Interventions to Improve Treatment of Uncomplicated Malaria in Nigeria: A Cluster Randomized Controlled Trial

    Article • PLoS ONE, August 2015, PLOS

    Professor Obinna Emmanuel Onwujekwe

  41. Quality of Artemisinin-Based Combination Formulations for Malaria Treatment: Prevalence and Risk Factors for Poor Quality Medicines in Public Facilities and Private Sector Drug Outlets in Enugu, Nigeria

    Article • PLoS ONE, May 2015, PLOS

    Professor Obinna Emmanuel Onwujekwe

  42. Development of oral health policy in Nigeria: an analysis of the role of context, actors and policy process

    Article • BMC Oral Health, May 2015, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  43. Investigating Male Tobacco Use and Expenditure Patterns across Socio-Economic Groups in Nigeria

    Article • PLoS ONE, April 2015, PLOS

    Professor Obinna Emmanuel Onwujekwe

  44. Investigating payment coping mechanisms used for the treatment of uncomplicated malaria to different socio-economic groups in Nigeria.

    Article • African Health Sciences, March 2015, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  45. Quality of care for the treatment for uncomplicated malaria in South-East Nigeria: how important is socioeconomic status?

    Article • International Journal for Equity in Health, February 2015, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  46. Health care financing in Nigeria: Implications for achieving universal health coverage

    Article • Nigerian Journal of Clinical Practice, January 2015, Medknow

    Professor Obinna Emmanuel Onwujekwe

  47. What co-morbidities do people with malaria have and what are their patterns of health seeking in Nigeria?

    Article • Nigerian Journal of Clinical Practice, January 2015, Medknow

    Professor Obinna Emmanuel Onwujekwe

  48. The Better Obstetrics in Rural Nigeria (BORN) Study: Evaluating the Nigerian Midwives Service Scheme

    Article • January 2015, Rand Corporation

    Professor Obinna Emmanuel Onwujekwe

  49. Economic Evaluation of a Cluster Randomized Trial of Interventions to Improve Health Workers’ Practice in Diagnosing and Treating Uncomplicated Malaria in Cameroon

    Article • Value in Health, December 2014, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  50. Management of childhood pain and healthcare providers’ willingness to use topical anaesthetic cream for minor procedural pain in Nigeria

    Article • Nigerian Journal of Paediatrics, November 2014, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  51. Economic Burden of Heart Failure: Investigating Outpatient and Inpatient Costs in Abeokuta, Southwest Nigeria

    Article • PLoS ONE, November 2014, PLOS

    Professor Obinna Emmanuel Onwujekwe

  52. Mind the gap: knowledge and practice of providers treating uncomplicated malaria at public and mission health facilities, pharmacies and drug stores in Cameroon and Nigeria

    Article • Health Policy and Planning, October 2014, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  53. ECONOMIC COST OF TREATMENT OF CHILDHOOD EPILEPSY IN ENUGU, SOUTHEAST NIGERIA

    Article • International Journal of Technology Assessment in Health Care, October 2014, Cambridge University Press

    Professor Obinna Emmanuel Onwujekwe

  54. Key influences over actors’ preferences and use of evidence in policy development: insights from the Nigerian IMNCH strategy

    Article • BMC Health Services Research, July 2014, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  55. Towards making efficient use of household resources for appropriate prevention of malaria: investigating households’ ownership, use and expenditures on ITNs and other preventive tools in Southeast Nigeria

    Article • BMC Public Health, April 2014, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  56. The long walk to universal health coverage: patterns of inequities in the use of primary healthcare services in Enugu, Southeast Nigeria

    Article • BMC Health Services Research, March 2014, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  57. Patent Medicine Dealers and Irrational Use of Medicines in Children: The Economic Cost and Implications for Reducing Childhood Mortality in Southeast Nigeria

    Article • PLoS ONE, March 2014, PLOS

    Professor Obinna Emmanuel Onwujekwe

  58. What determines providers' stated preference for the treatment of uncomplicated malaria?

    Article • Social Science & Medicine, March 2014, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  59. Caregivers′ willingness-to-pay for a topical anesthetic cream for minor medical procedures in children

    Article • Nigerian Journal of Clinical Practice, January 2014, Medknow

    Professor Obinna Emmanuel Onwujekwe

  60. Health services utilization and costs of the insured and uninsured under the formal sector social health insurance scheme in Enugu metropolis South East Nigeria

    Article • Nigerian Journal of Clinical Practice, January 2014, Medknow

    Professor Obinna Emmanuel Onwujekwe

  61. Participation of policy actors in the development of health policies in India and Nigeria and the implications for the role of evidence in policy-making

    Article • BMC Health Services Research, January 2014, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  62. Sero-prevalence and factors associated with Hepatitis B and C co-infection in pregnant Nigerian women living with HIV Infection

    Article • Pan African Medical Journal, January 2014, Pan African Medical Journal

    Professor Obinna Emmanuel Onwujekwe

  63. The Economic Burden of Malaria on Households and the Health System in Enugu State Southeast Nigeria

    Article • PLoS ONE, November 2013, PLOS

    Professor Obinna Emmanuel Onwujekwe

  64. Optimizing PMTCT service delivery in rural North-Central Nigeria: Protocol and design for a cluster randomized study

    Article • Contemporary Clinical Trials, September 2013, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  65. Willingness to pay and benefit-cost analysis of modern contraceptives in Nigeria

    Article • International Journal of Gynecology & Obstetrics, June 2013, Wiley

    Professor Obinna Emmanuel Onwujekwe

  66. Promoting universal financial protection: constraints and enabling factors in scaling-up coverage with social health insurance in Nigeria

    Article • Health Research Policy and Systems, June 2013, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  67. Sputum Smear Concentration May Misidentify Acid-Fast Bacilli As Mycobacterium Tuberculosis in HIV-Infected Patients

    Article • JAIDS Journal of Acquired Immune Deficiency Syndromes, June 2013, Wolters Kluwer Health

    Professor Obinna Emmanuel Onwujekwe

  68. Viewing health expenditures, payment and coping mechanisms with an equity lens in Nigeria

    Article • BMC Health Services Research, March 2013, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  69. How do health workers perceive and practice monitoring and evaluation of malaria control interventions in South-east Nigeria?

    Article • BMC Health Services Research, March 2013, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  70. Financing incidence analysis of household out-of-pocket spending for healthcare: getting more health for money in Nigeria?

    Article • The International Journal of Health Planning and Management, February 2013, Wiley

    Professor Obinna Emmanuel Onwujekwe

  71. Are modern contraceptives acceptable to people and where do they source them from across Nigeria?

    Article • BMC International Health and Human Rights, January 2013, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  72. Exploring health providers’ and community perceptions and experiences with malaria tests in South-East Nigeria: a critical step towards appropriate treatment

    Article • Malaria Journal, November 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  73. PMD58 Cost-Effectiveness Analysis of Leprosy Case Detection Methods in Northern Nigeria

    Article • Value in Health, November 2012, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  74. Cost-Effectiveness Analysis of Three Leprosy Case Detection Methods in Northern Nigeria

    Article • PLoS Neglected Tropical Diseases, September 2012, PLOS

    Professor Obinna Emmanuel Onwujekwe

  75. Incidence of and socio-biologic risk factors for spontaneous preterm birth in HIV positive Nigerian women

    Article • BMC Pregnancy and Childbirth, September 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  76. Sub-optimal delivery of intermittent preventive treatment for malaria in pregnancy in Nigeria: influence of provider factors

    Article • Malaria Journal, September 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  77. Authors' Response to: Alternatives to principal components analysis to derive asset-based indices to measure socio-economic position in low- and middle-income countries: the case for multiple correspondence analysis

    Article • International Journal of Epidemiology, August 2012, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  78. Financing and delivery mechanisms for mosquito control tools in Sudan: A Strengths Weaknesses Opportunities and Threats (SWOT) analysis.

    Article • Journal of College of Medicine, July 2012, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  79. Examining Inequities in Incidence of Catastrophic Health Expenditures on Different Healthcare Services and Health Facilities in Nigeria

    Article • PLoS ONE, July 2012, PLOS

    Professor Obinna Emmanuel Onwujekwe

  80. Patterns of case management and chemoprevention for malaria-in-pregnancy by public and private sector health providers in Enugu state, Nigeria

    Article • BMC Research Notes, July 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  81. Genetic Determinants of Drug-Resistant Tuberculosis among HIV-Infected Patients in Nigeria

    Article • Journal of Clinical Microbiology, June 2012, ASM Journals

    Professor Obinna Emmanuel Onwujekwe

  82. A cost-effectiveness analysis of provider and community interventions to improve the treatment of uncomplicated malaria in Nigeria: study protocol for a randomized controlled trial

    Article • Trials, June 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  83. Examining equity in access to long-lasting insecticide nets and artemisinin-based combination therapy in Anambra state, Nigeria

    Article • BMC Public Health, May 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  84. Low coverage of intermittent preventive treatment for malaria in pregnancy in Nigeria: demand-side influences

    Article • Malaria Journal, March 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  85. Measuring socio-economic position for epidemiological studies in low- and middle-income countries: a methods of measurement in epidemiology paper

    Article • International Journal of Epidemiology, March 2012, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  86. Retention and loss to follow-up in antiretroviral treatment programmes in southeast Nigeria

    Article • Pathogens and Global Health, March 2012, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  87. Health Insurance: principles, models and the Nigerian National Health Insurance Scheme

    Article • Journal of College of Medicine, February 2012, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  88. Challenges in actual implementation of health policies: a review of payment exemption in Nigeria.

    Article • Journal of College of Medicine, January 2012, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  89. Socio-economic inequalities in cost of seeking treatment for malaria in south-east Nigeria

    Article • Journal of College of Medicine, January 2012, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  90. Towards Universal Coverage: Examining Costs of Illness, Payment, and Coping Strategies to Different Population Groups in Southeast Nigeria

    Article • American Journal of Tropical Medicine and Hygiene, January 2012, American Society of Tropical Medicine and Hygiene

    Professor Obinna Emmanuel Onwujekwe

  91. Increasing access to modern contraceptives: the potential role of community solidarity through altruistic contributions

    Article • International Journal for Equity in Health, January 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  92. Are the poor differentially benefiting from provision of priority public health services? A benefit incidence analysis in Nigeria

    Article • International Journal for Equity in Health, January 2012, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  93. Pattern and Determinants of Antiretroviral Drug Adherence among Nigerian Pregnant Women

    Article • Journal of Pregnancy, January 2012, Hindawi Publishing Corporation

    Professor Obinna Emmanuel Onwujekwe

  94. WILLINGNESS TO PAY FOR PRIVATE VOLUNTARY HEALTH INSURANCE IN SOUTHEAST NIGERIA

    Article • African Journal of Health Economics, January 2012, Health Policy Research Group, College of Medicine, University of Nigeria Enugu Campus

    Professor Obinna Emmanuel Onwujekwe

  95. Immunologic Criteria Are Poor Predictors of Virologic Outcome: Implications for HIV Treatment Monitoring in Resource-Limited Settings

    Article • Clinical Infectious Diseases, November 2011, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  96. Socio-economic and geographic differences in acceptability of community-based health insurance

    Article • Public Health, November 2011, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  97. Examining catastrophic health expenditures at variable thresholds using household consumption expenditure diaries

    Article • Tropical Medicine & International Health, July 2011, Wiley

    Professor Obinna Emmanuel Onwujekwe

  98. Do poor people use poor quality providers? Evidence from the treatment of presumptive malaria in Nigeria

    Article • Tropical Medicine & International Health, June 2011, Wiley

    Professor Obinna Emmanuel Onwujekwe

  99. Treatment of uncomplicated malaria at public health facilities and medicine retailers in south-eastern Nigeria

    Article • Malaria Journal, June 2011, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  100. Voluntary counseling and testing (VCT) for HIV/AIDS: A study of the knowledge, awareness and willingness to pay for VCT among students in tertiary institutions in Enugu State Nigeria

    Article • Health Policy, March 2011, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  101. Improving Rational Treatment of Malaria: Perceptions and Influence of RDTs on Prescribing Behaviour of Health Workers in Southeast Nigeria

    Article • PLoS ONE, January 2011, PLOS

    Professor Obinna Emmanuel Onwujekwe

  102. Constraints to universal coverage: inequities in health service use and expenditures for different health conditions and providers

    Article • International Journal for Equity in Health, January 2011, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  103. Impact of HIV Type 1 Subtype on Drug Resistance Mutations in Nigerian Patients Failing First-Line Therapy

    Article • AIDS Research and Human Retroviruses, January 2011, Mary Ann Liebert Inc

    Professor Obinna Emmanuel Onwujekwe

  104. Asking people directly about preferred health-seeking behaviour yields invalid response: an experiment in south-east Nigeria

    Article • Journal of Public Health, August 2010, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  105. Examining appropriate diagnosis and treatment of malaria

    Article • BMC Public Health, August 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  106. Preferences for benefit packages for community-based health insurance: an exploratory study in Nigeria

    Article • BMC Health Services Research, June 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  107. Informal payments for healthcare: Differences in expenditures from consumers and providers perspectives for treatment of malaria in Nigeria

    Article • Health Policy, June 2010, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  108. Investigating determinants of out-of-pocket spending and strategies for coping with payments for healthcare in southeast Nigeria

    Article • BMC Health Services Research, March 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  109. Geographic inequities in provision and utilization of malaria treatment services in southeast Nigeria: Diagnosis, providers and drugs

    Article • Health Policy, February 2010, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  110. Do consumers' preferences for improved provision of malaria treatment services differ by their socio-economic status and geographic location? A study in southeast Nigeria

    Article • BMC Public Health, January 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  111. Improving quality of malaria treatment services: assessing inequities in consumers' perceptions and providers' behaviour in Nigeria

    Article • International Journal for Equity in Health, January 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  112. Willingness to pay for rapid diagnostic tests for the diagnosis and treatment of malaria in southeast Nigeria: ex post and ex ante

    Article • International Journal for Equity in Health, January 2010, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  113. Cost-effectiveness analysis of rapid diagnostic test, microscopy and syndromic approach in the diagnosis of malaria in Nigeria: implications for scaling-up deployment of ACT

    Article • Malaria Journal, November 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  114. Are malaria treatment expenditures catastrophic to different socio-economic and geographic groups and how do they cope with payment? A study in southeast Nigeria

    Article • Tropical Medicine & International Health, November 2009, Wiley

    Professor Obinna Emmanuel Onwujekwe

  115. Willingness to pay for community-based health insurance in Nigeria: do economic status and place of residence matter?

    Article • Health Policy and Planning, October 2009, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  116. Inequities in incidence, morbidity and expenditures on prevention and treatment of malaria in southeast Nigeria

    Article • BMC International Health and Human Rights, September 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  117. Is community-based health insurance an equitable strategy for paying for healthcare? Experiences from southeast Nigeria

    Article • Health Policy, September 2009, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  118. Examining catastrophic costs and benefit incidence of subsidized antiretroviral treatment (ART) programme in south-east Nigeria

    Article • Health Policy, May 2009, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  119. Determinants of non-adherence to subsidized anti-retroviral treatment in southeast Nigeria

    Article • Health Policy and Planning, March 2009, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  120. Issues in equitable health financing in South Eastern Nigeria: Socio-economic and geographic differences in households' illness expenditures and policy makers' views on the financial protection of the poor

    Article • Journal of International Development, March 2009, Wiley

    Professor Obinna Emmanuel Onwujekwe

  121. Intimate partner violence and correlates in pregnant HIV positive Nigerians

    Article • Archives of Gynecology and Obstetrics, February 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  122. Quality of anti-malarial drugs provided by public and private healthcare providers in south-east Nigeria

    Article • Malaria Journal, February 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  123. Are there geographic and socio-economic differences in incidence, burden and prevention of malaria? A study in southeast Nigeria

    Article • International Journal for Equity in Health, January 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  124. Malaria treatment perceptions, practices and influences on provider behaviour: comparing hospitals and non-hospitals in south-east Nigeria

    Article • Malaria Journal, January 2009, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  125. Integrated management of childhood illness in Nigeria: Does short-term training of health workers improve their performance?

    Article • Public Health, April 2008, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  126. Rural-Urban Differences in Maternal Responses to Childhood Fever in South East Nigeria

    Article • PLoS ONE, March 2008, PLOS

    Professor Obinna Emmanuel Onwujekwe

  127. Improving equity in malaria treatment: Relationship of socio-economic status with health seeking as well as with perceptions of ease of using the services of different providers for the treatment of malaria in Nigeria

    Article • Malaria Journal, January 2008, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  128. Households' Perceptions and Prioritization of Tropical Endemic Diseases in Nigeria: Implications for Priority Setting for Resource Allocation

    Article • World Health & Population, October 2007, Longwoods Publishing

    Professor Obinna Emmanuel Onwujekwe

  129. Construct Validity of the Bidding Game, Binary with Follow-up, and a Novel Structured Haggling Question Format in Determining Willingness to Pay for Insecticide-Treated Mosquito Nets

    Article • Medical Decision Making, July 2007, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  130. Feasibility of a community health worker strategy for providing near and appropriate treatment of malaria in southeast Nigeria: An analysis of activities, costs and outcomes

    Article • Acta Tropica, February 2007, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  131. Consumers stated and revealed preferences for community health workers and other strategies for the provision of timely and appropriate treatment of malaria in southeast Nigeria

    Article • Malaria Journal, December 2006, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  132. Exemption policies and community preferences for tropical endemic diseases in the Bamako initiative programme in Nigeria

    Article • Tropical Doctor, July 2006, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  133. Influence of education and knowledge on perceptions and practices to control malaria in Southeast Nigeria

    Article • Social Science & Medicine, July 2006, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  134. Some indicators of socio-economic status may not be reliable and use of indices with these data could worsen equity

    Article • Health Economics, January 2006, Wiley

    Professor Obinna Emmanuel Onwujekwe

  135. Healthcare reform involving the introduction of user fees and drug revolving funds: influence on health workers’ behavior in southeast Nigeria

    Article • Health Policy, December 2005, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  136. The rapid monitoring of ivermectin treatment: will school-based surveys provide the answer?

    Article • Annals of Tropical Medicine and Parasitology, December 2005, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  137. Socio-economic inequity in demand for insecticide-treated nets, in-door residual house spraying, larviciding and fogging in Sudan

    Article • Malaria Journal, December 2005, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  138. Do malaria preventive interventions reach the poor? Socioeconomic inequities in expenditure on and use of mosquito control tools in Sudan

    Article • Health Policy and Planning, November 2005, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  139. Issues of measuring and improving the treatment of malaria in sub-Saharan Africa

    Article • Tropical Doctor, October 2005, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  140. Increasing coverage of insecticide-treated nets in rural Nigeria: implications of consumer knowledge, preferences and expenditures for malaria prevention

    Article • Malaria Journal, July 2005, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  141. Inequities in healthcare seeking in the treatment of communicable endemic diseases in Southeast Nigeria

    Article • Social Science & Medicine, July 2005, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  142. Where do people from different socio–economic groups receive diagnosis and treatment for presumptive malaria, in south–eastern Nigeria?

    Article • Annals of Tropical Medicine and Parasitology, July 2005, Taylor & Francis

    Professor Obinna Emmanuel Onwujekwe

  143. Socio-economic and geographic differentials in costs and payment strategies for primary healthcare services in Southeast Nigeria

    Article • Health Policy, March 2005, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  144. Do divergences between stated and actual willingness to pay signify the existence of bias in contingent valuation surveys?

    Article • Social Science & Medicine, February 2005, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  145. Inter-rater and test-retest reliability of three contingent valuation question formats in south-east Nigeria

    Article • Health Economics, January 2005, Wiley

    Professor Obinna Emmanuel Onwujekwe

  146. Community satisfaction with the quality of maternal and child health services in Southeast Nigeria

    Article • East African Medical Journal, October 2004, African Journals Online (AJOL)

    Professor Obinna Emmanuel Onwujekwe

  147. Is combination therapy for malaria based on user-fees worthwhile and equitable to consumers?

    Article • Acta Tropica, July 2004, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  148. How do health workers and community members perceive and practice community participation in the Bamako Initiative programme in Nigeria? A case study of Oji River local government area

    Article • Social Science & Medicine, July 2004, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  149. Socio-economic differences and health seeking behaviour for the diagnosis and treatment of malaria: a case study of four local government areas operating the Bamako initiative programme in south-east Nigeria

    Article • International Journal for Equity in Health, June 2004, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  150. Stated and actual altruistic willingness to pay for insecticide-treated nets in Nigeria: validity of open-ended and binary with follow-up questions

    Article • Health Economics, April 2004, Wiley

    Professor Obinna Emmanuel Onwujekwe

  151. Valuing the benefits of a health intervention using three different approaches to contingent valuation: re-treatment of mosquito bed-nets in Nigeria

    Article • Journal of Health Services Research & Policy, April 2004, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  152. Criterion and content validity of a novel structured haggling contingent valuation question format versus the bidding game and binary with follow-up format

    Article • Social Science & Medicine, February 2004, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  153. Inequity in the Bamako Initiative programme?implications for the treatment of malaria in south-east Nigeria

    Article • The International Journal of Health Planning and Management, January 2004, Wiley

    Professor Obinna Emmanuel Onwujekwe

  154. Article • Malaria Journal, January 2004, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe, Professor Alvaro Cantini Nunes

  155. Article • Malaria Journal, January 2004, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  156. Who buys insecticide-treated nets? Implications for increasing coverage in Nigeria

    Article • Health Policy and Planning, September 2003, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  157. Investigating starting-point bias: a survey of willingness to pay for insecticide-treated nets

    Article • Social Science & Medicine, December 2002, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  158. Community-directed treatment with ivermectin in two Nigerian communities: an analysis of first year start-up processes, costs and consequences

    Article • Health Policy, October 2002, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  159. Altruistic willingness to pay in community-based sales of insecticide-treated nets exists in Nigeria

    Article • Social Science & Medicine, February 2002, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  160. Onchocerciasis control in Nigeria: will households be able to afford community-directed treatment with ivermectin?

    Article • Acta Tropica, December 2001, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  161. Hypothetical and actual willingness to pay for insecticide-treated nets in five Nigerian communities

    Article • Tropical Medicine & International Health, July 2001, Wiley

    Professor Obinna Emmanuel Onwujekwe

  162. Health insurance and health services utilization in Ireland

    Article • Health Economics, March 2001, Wiley

    Professor Obinna Emmanuel Onwujekwe

  163. Letters to the Editors

    Article • Tropical Medicine & International Health, January 2001, Wiley

    Professor Obinna Emmanuel Onwujekwe

  164. Searching for a better willingness to pay elicitation method in rural Nigeria: the binary question with follow-up method versus the bidding game technique

    Article • Health Economics, January 2001, Wiley

    Professor Obinna Emmanuel Onwujekwe

  165. Economic burden of malaria illness on households versus that of all other illness episodes: a study in five malaria holo-endemic Nigerian communities

    Article • Health Policy, November 2000, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  166. How do rural households perceive and prioritise malaria and mosquito nets? A study in five communities of Nigeria

    Article • Public Health, September 2000, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  167. How do rural households perceive and prioritise malaria and mosquito nets? A study in five communities of Nigeria

    Article • Public Health, September 2000, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  168. Do alcoholic beverages enhance availability of ivermectin?

    Article • European Journal of Clinical Pharmacology, August 2000, Springer Science + Business Media

    Professor Obinna Emmanuel Onwujekwe

  169. Willingness to pay for the retreatment of mosquito nets with insecticide in four communities of south-eastern Nigeria

    Article • Tropical Medicine & International Health, May 2000, Wiley

    Professor Obinna Emmanuel Onwujekwe

  170. Community Financing of Local Ivermectin Distribution in Nigeria: Potential Payment and Cost-Recovery Outlook

    Article • Tropical Doctor, April 2000, SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  171. A health club for a community school in south-eastern Nigeria: influence on adult perception of onchocerciasis and compliance with community-based ivermectin therapy

    Article • Tropical Medicine & International Health, March 2000, Wiley

    Professor Obinna Emmanuel Onwujekwe

  172. Treatment with ivermectin: what works in one community may not work in another

    Article • Journal of Epidemiology & Community Health, January 2000, BMJ

    Professor Obinna Emmanuel Onwujekwe

  173. Are insecticide-treated nets affordable? Relating costs of two sizes of nets and net re-treatment with basic household expenditures

    Article • Transactions of the Royal Society of Tropical Medicine and Hygiene, November 1999, Oxford University Press (OUP)

    Professor Obinna Emmanuel Onwujekwe

  174. Health education to school children in Okpatu, Nigeria

    Article • Public Health, September 1999, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  175. Health education to school children in Okpatu, Nigeria impact on onchocerciasis—related knowledge

    Article • Public Health, September 1999, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  176. Willingness to pay for the maintenance of equity in a local ivermectin distribution scheme in Toro, Northern Nigeria

    Article • Public Health, July 1999, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  177. Willingness to pay for the maintenance of equity in a local ivermectin distribution scheme in Toro, Northern Nigeria

    Article • Public Health, July 1999, Elsevier

    Professor Obinna Emmanuel Onwujekwe

  178. Willingness to pay for community‐based ivermectin distribution: A study of three onchocerciasis‐endemic communities in Nigeria

    Article • Tropical Medicine & International Health, October 1998, Wiley

    Professor Obinna Emmanuel Onwujekwe

  179. Willingness to Pay

    Article • SAGE Publications

    Professor Obinna Emmanuel Onwujekwe

  180. Treatment-Seeking Practices and the Willingness to Pay for Antiretroviral treatment of HIV-Positive Patients in Southeast Nigeria

    Article • SSRN Electronic Journal, Elsevier

    Professor Obinna Emmanuel Onwujekwe