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Impact of Community Health Outreach Fairs on Preventive Health Screening Uptake among Adults in Rural Nigeria

Abstract

Preventive health screening is an important component of public health because early identification of health risks and undiagnosed conditions can facilitate timely intervention, treatment, and referral. Adults living in rural communities in Nigeria may face barriers to preventive screening, including limited availability of healthcare facilities, geographical distance, transportation difficulties, financial constraints, low health awareness, competing livelihood responsibilities, and inadequate access to organized screening services. Community health outreach fairs provide an opportunity to bring multiple preventive health services closer to rural populations through organized community-based activities. Such outreach events may offer screening for conditions such as hypertension, diabetes, anaemia, obesity, and other relevant health risks, alongside health education and referral services. Against this background, this study investigates the impact of community health outreach fairs on preventive health screening uptake among adults in rural Nigeria. The study will be anchored on the Health Belief Model, Andersen's Behavioral Model of Health Services Use, and the Social Ecological Model. The Health Belief Model explains how individuals' perceptions of susceptibility to disease, perceived severity, perceived benefits of screening, perceived barriers, and cues to action may influence participation in preventive health screening. Andersen's Behavioral Model explains healthcare utilization through predisposing characteristics, enabling resources, and perceived or evaluated healthcare needs. The Social Ecological Model emphasizes the interaction between individual, interpersonal, community, healthcare-system, and environmental factors in shaping access to and utilization of preventive health services. Collectively, these theoretical perspectives provide a suitable framework for explaining how community health outreach fairs may influence preventive health screening uptake among adults in rural 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 rural communities across Nigeria. A multistage sampling technique will be used to select geopolitical zones, states, local government areas, rural communities, households, and eligible participants. Community health outreach fairs will be assessed using indicators such as frequency of outreach activities, availability of screening services, number and type of preventive health services provided, accessibility, duration of outreach events, availability of healthcare personnel, screening equipment, health education, community mobilization, registration procedures, referral arrangements, follow-up mechanisms, and continuity of services after the outreach event. Preventive health screening uptake will be assessed using indicators such as participation in blood pressure screening, blood glucose testing where appropriate, body mass index assessment, anaemia screening, selected infectious disease screening, other risk assessments relevant to the programme, repeat screening, acceptance of screening, completion of recommended screening, and referral for further assessment when indicated. Data will be collected using structured questionnaires, outreach attendance registers, screening records, referral registers, community health programme documents, and relevant healthcare facility records, subject to appropriate ethical and confidentiality safeguards. Descriptive statistics will be used to summarize participants' characteristics, exposure to outreach fairs, screening services received, and patterns of preventive screening 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 impact of community health outreach fairs on preventive health screening uptake. Where a quasi-experimental design is adopted, screening uptake before and after implementation of outreach fairs may be compared with that of a comparison community 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 community health outreach fairs have a significant positive impact on preventive health screening uptake among adults in rural Nigeria. Adults who have access to community outreach fairs are expected to demonstrate greater participation in preventive screening than adults without comparable access to community-based screening activities. Bringing screening services closer to rural residents may reduce geographical, financial, and time-related barriers while providing convenient opportunities for individuals to assess their health status. Combining screening with health education, counselling, community mobilization, and referral services may further encourage adults to participate and seek appropriate follow-up care when abnormal findings are identified. Outreach fairs may also increase awareness of previously undetected health risks and strengthen links between rural communities and formal healthcare facilities. However, limited funding, inadequate equipment, shortage of healthcare personnel, poor community mobilization, unreliable supply of screening materials, low awareness, cultural beliefs, and weak referral and follow-up systems may reduce programme effectiveness. The study therefore expects accessible, well-organized, culturally appropriate, and adequately supported community health outreach fairs to contribute significantly to improved preventive health screening uptake among adults in rural Nigeria. The study is expected to contribute to the literature on community health outreach, preventive health screening, screening uptake, rural healthcare, health promotion, disease prevention, primary healthcare, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, National Primary Health Care Development Agency, state ministries of health, local government health authorities, primary healthcare centres, community health workers, non-governmental organizations, development partners, and policymakers regarding strategies for expanding preventive health services to underserved rural populations. The study will also provide evidence-based recommendations for strengthening community outreach programmes, improving community mobilization, expanding the range of appropriate preventive screening services, ensuring adequate screening equipment and trained personnel, strengthening referral and follow-up mechanisms, and integrating outreach fairs with routine primary healthcare services across rural Nigeria.

Keywords: Community health outreach fairs, preventive health screening, screening uptake, rural adults, health promotion, disease prevention, community healthcare, primary healthcare, rural health, Nigeria, public health.