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Effect of Prevention of Mother-to-Child Transmission Services on HIV Testing among Pregnant Women in Nigeria

Abstract

Human immunodeficiency virus (HIV) infection remains an important public health concern in Nigeria, particularly among pregnant women because undiagnosed maternal HIV infection may result in transmission of the virus to infants during pregnancy, childbirth, or breastfeeding. Prevention of mother-to-child transmission (PMTCT) services provide an important platform for identifying HIV infection during pregnancy, providing counselling and testing, linking women who test positive to appropriate treatment and care, and supporting interventions that reduce the risk of HIV transmission to their infants. However, uptake of HIV testing among pregnant women may be affected by limited access to antenatal care, inadequate counselling, fear of stigma and discrimination, concerns about confidentiality, misinformation, financial and geographical barriers, and inconsistent availability of HIV testing services. Effective PMTCT services may therefore improve access to and acceptance of HIV testing among pregnant women. Against this background, this study investigates the effect of Prevention of Mother-to-Child Transmission services on HIV testing among pregnant women in Nigeria. The study will be anchored on the Health Belief Model, Social Ecological Model, and Donabedian Model of Healthcare Quality. The Health Belief Model explains how pregnant women's perceptions of HIV susceptibility and severity, perceived benefits of testing, perceived barriers, self-efficacy, and cues to action may influence their willingness to undergo HIV testing. The Social Ecological Model emphasizes the interaction between individual, interpersonal, community, healthcare facility, and health-system factors in determining access to and utilization of HIV testing services. The Donabedian Model explains healthcare quality through structure, process, and outcome, with PMTCT services representing important structural and process components and HIV testing uptake serving as a measurable outcome. Collectively, these theoretical perspectives provide a suitable framework for explaining how PMTCT services may influence HIV testing among pregnant women in Nigeria. The study will adopt a quantitative quasi-experimental or analytical cross-sectional research design. The study population will comprise pregnant women attending antenatal care in selected public and private hospitals, maternity centres, and primary healthcare facilities across Nigeria. A multistage sampling technique will be used to select states, local government areas, healthcare facilities, antenatal clinics, and eligible pregnant women. PMTCT services will be assessed using indicators such as availability of HIV testing and counselling, routine offer of HIV testing during antenatal care, pre-test and post-test counselling, availability of trained healthcare workers, confidentiality of testing, availability of HIV test kits, linkage to HIV treatment and care, partner testing support, repeat testing where appropriate, referral services, health education, follow-up, and integration of HIV testing into antenatal care. HIV testing among pregnant women will be assessed using indicators such as acceptance of HIV testing, completion of HIV testing, testing during antenatal care, timing of testing during pregnancy, repeat testing where indicated, receipt of test results, documentation of HIV status, and linkage to appropriate services following a positive result. Data will be collected using structured questionnaires, antenatal care records, PMTCT registers, HIV testing registers, laboratory records, maternal health records, referral documents, and relevant programme monitoring records. Descriptive statistics will be used to summarize pregnant women's demographic and obstetric characteristics, exposure to PMTCT services, HIV testing availability, and testing uptake. Inferential statistical techniques, including chi-square tests, t-tests, correlation analysis, and logistic or multiple regression analysis where appropriate, will be used to determine the effect of PMTCT services on HIV testing. Where a quasi-experimental design is adopted, HIV testing uptake before and after implementation of strengthened PMTCT services may be compared, or testing uptake among facilities with comprehensive PMTCT services may be compared with similar facilities offering limited PMTCT services. Diagnostic tests will also be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that effective PMTCT services have a significant positive effect on HIV testing among pregnant women in Nigeria. Pregnant women receiving comprehensive PMTCT services are expected to have a higher likelihood of accepting and completing HIV testing than women with limited access to PMTCT services. Routine provision of HIV counselling and testing within antenatal care may reduce barriers associated with additional facility visits and improve opportunities for early diagnosis. Appropriate counselling may also improve women's understanding of the benefits of HIV testing for their own health and the prevention of HIV transmission to their infants. Confidential testing, trained healthcare providers, reliable availability of test kits, and effective linkage to treatment and support services are expected to further encourage testing uptake. However, stigma, fear of disclosure, concerns about confidentiality, inadequate staffing, test-kit shortages, limited antenatal attendance, financial barriers, geographical inaccessibility, and weak referral and follow-up systems may reduce the effectiveness of PMTCT services. The study therefore expects accessible, confidential, well-integrated, and adequately resourced PMTCT services to contribute significantly to improved HIV testing among pregnant women in Nigeria. The study is expected to contribute to the literature on prevention of mother-to-child transmission of HIV, HIV testing among pregnant women, antenatal care, maternal and newborn health, HIV counselling and testing, PMTCT services, HIV prevention, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, National Agency for the Control of AIDS, National Primary Health Care Development Agency, state ministries of health, hospitals, primary healthcare facilities, antenatal care providers, HIV programme managers, development partners, community organizations, and policymakers regarding strategies for strengthening maternal HIV prevention services. The study will also provide evidence-based recommendations for integrating routine HIV testing into antenatal care, improving the availability of HIV test kits, strengthening healthcare worker training, protecting confidentiality, reducing HIV-related stigma, improving counselling services, strengthening linkage and referral systems, and increasing access to PMTCT services among pregnant women across Nigeria.

Keywords: Prevention of Mother-to-Child Transmission, PMTCT, HIV testing, pregnant women, antenatal care, HIV counselling and testing, maternal health, HIV prevention, maternal and newborn health, Nigeria, public health.