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Impact of Malaria Rapid Diagnostic Testing Education on Appropriate Malaria Testing Practices among Adults in Nigeria

Abstract

Malaria remains a major public health concern in Nigeria and continues to contribute substantially to illness, healthcare utilization, lost productivity, and preventable deaths. Appropriate diagnosis is an important component of effective malaria management because symptoms such as fever, headache, chills, weakness, and body aches may occur in several other illnesses. Malaria rapid diagnostic tests (RDTs) provide a relatively simple method for detecting malaria parasites and may support appropriate treatment decisions when used correctly. However, limited knowledge of malaria testing, misconceptions that every fever is caused by malaria, preference for presumptive treatment, inadequate understanding of RDT results, and limited awareness of the importance of confirmatory testing may influence testing practices among adults. Malaria rapid diagnostic testing education provides an opportunity to improve adults' understanding of the purpose, benefits, procedures, interpretation, and appropriate use of malaria RDTs. Against this background, this study investigates the impact of malaria rapid diagnostic testing education on appropriate malaria testing practices among adults in Nigeria. The study will be anchored on the Health Belief Model, Health Literacy Theory, and Social Cognitive Theory. The Health Belief Model explains how adults' perceptions of susceptibility to malaria, perceived severity, perceived benefits of malaria testing, perceived barriers, self-efficacy, and cues to action may influence their testing practices. Health Literacy Theory emphasizes adults' ability to obtain, understand, evaluate, and apply accurate information about malaria symptoms, diagnostic testing, RDT procedures, test results, and appropriate healthcare-seeking. Social Cognitive Theory emphasizes observational learning, behavioural modelling, self-efficacy, reinforcement, social support, and environmental influences in shaping adults' adoption of appropriate malaria-testing practices. Collectively, these theoretical perspectives provide a suitable framework for explaining how malaria RDT education may influence appropriate malaria testing practices among adults in Nigeria. The study will adopt a quantitative quasi-experimental or analytical cross-sectional research design. The study population will comprise adults aged 18 years and above residing in selected urban, semi-urban, and rural communities across Nigeria. A multistage sampling technique will be used to select geopolitical zones, states, local government areas, communities, households, primary healthcare centres, pharmacies, patent and proprietary medicine vendors where appropriate, and eligible adults. Malaria RDT education will be assessed using indicators such as exposure to educational sessions, frequency and duration of education, information on malaria transmission and symptoms, the importance of parasite-based diagnosis, indications for RDT use, test procedures, specimen collection, result interpretation, limitations of RDTs, appropriate actions following positive or negative results, treatment decisions, repeat testing or clinical reassessment where appropriate, prevention of inappropriate antimalarial use, and reliable sources of malaria information. Appropriate malaria testing practices will be assessed using indicators such as seeking parasite-based testing when clinically indicated, obtaining testing from appropriate healthcare providers or trained personnel, willingness to undergo RDT when recommended, understanding and appropriately responding to test results, avoiding unnecessary self-treatment based solely on fever symptoms, seeking further professional assessment when symptoms persist despite a negative test, and maintaining appropriate follow-up after testing. Data will be collected using structured questionnaires, standardized malaria-testing knowledge and practice assessment tools, scenario-based questions, healthcare or testing records where ethically and practically accessible, and pre-test and post-test assessments where a quasi-experimental intervention is adopted. Descriptive statistics will be used to summarize participants' demographic and socioeconomic characteristics, previous malaria-testing experiences, sources of malaria information, knowledge levels, and testing practices. Inferential statistical techniques, including chi-square tests, paired and independent t-tests, correlation analysis, and logistic or multiple regression analysis where appropriate, will be used to determine the impact of malaria RDT education on appropriate malaria testing practices. Where a quasi-experimental design is adopted, testing-practice scores before and after the educational intervention may be compared with those of a comparison group to determine changes associated with the intervention. Diagnostic tests will also be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that malaria rapid diagnostic testing education has a significant positive impact on appropriate malaria testing practices among adults in Nigeria. Adults exposed to structured, practical, evidence-based, and culturally appropriate malaria RDT education are expected to demonstrate greater use of appropriate malaria testing services than adults without comparable exposure. Education may improve understanding that malaria symptoms are not specific to malaria and that parasite-based testing can support appropriate treatment decisions. It may also improve adults' ability to understand RDT procedures and results and encourage appropriate healthcare-seeking when results are negative but symptoms persist or when further clinical evaluation is required. Improved knowledge may reduce unnecessary presumptive antimalarial treatment and encourage more appropriate use of diagnostic services. However, limited availability of reliable testing services, cost of healthcare, distance to facilities, preference for self-medication, misinformation, poor-quality testing services, and continued beliefs that every fever represents malaria may reduce the effectiveness of education alone. The study therefore expects accessible, practical, evidence-based, and sustained malaria RDT education, supported by reliable diagnostic and healthcare services, to contribute significantly to improved malaria testing practices among adults in Nigeria. The study is expected to contribute to the literature on malaria diagnosis, rapid diagnostic testing, malaria prevention and control, health education, health literacy, healthcare-seeking behaviour, rational medicine use, infectious disease management, primary healthcare, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, National Malaria Elimination Programme, National Primary Health Care Development Agency, state ministries of health, primary healthcare centres, hospitals, pharmacies, trained malaria-testing providers, community health workers, development partners, and policymakers regarding strategies for strengthening appropriate malaria diagnosis. The study will also provide evidence-based recommendations for expanding malaria RDT education, improving public understanding of parasite-based diagnosis, strengthening access to quality malaria testing services, improving interpretation of RDT results, reducing presumptive treatment and unnecessary antimalarial use, strengthening referral and follow-up systems, and developing sustainable community-based interventions that promote appropriate malaria testing practices across Nigeria.

Keywords: Malaria rapid diagnostic testing education, malaria testing practices, malaria RDT, adults, malaria diagnosis, parasite-based diagnosis, healthcare-seeking, health education, malaria control, primary healthcare, Nigeria, public health.