Evidence for "Whole Family Approach" in accelerating uptake of COVID-19 and routine immunizations among integrated primary health services in Nigeria

The family is the simplest unit but possesses the strongest bond in society. These qualities - bond and proximity - that exist both within and across neighboring families, according to our research, can be instrumental in shaping a new kind of health promotion strategy that can transform health behaviors in communities. The Whole Family Approach (WFA) is a government-sanctioned approach to increase uptake of COVID-19 vaccines in Nigeria. The approach entails leveraging the high family-based demand for some primary health services, such as malaria, diabetes, hypertension, and reproductive services, to generate demand for COVID-19 and routine immunizations. However, since the announcement in 2021, there has been no available evidence to show the impact of the approach on COVID-19 vaccine uptake, though global literature generally favors family-centered health approaches. This study tests the effectiveness of the approach in increasing the utilization of target services in a Nigerian community and further provides a theoretical framework for the strategy. Two primary healthcare facilities were selected in two communities located in Abuja in a quasi-experimental design. After a small-sample landscape assessment of the communities and the facilities, family-targeting health promotion activities were facilitated in the intervention community (integrated health education by trained community health influencers) and facility (opportunistic health promotion through in-facility referrals) for one month. Anonymized service utilization data were acquired from both facilities over a period of four months to analyze their respective month-by-month service utilization trends. Time trend analysis was conducted and revealed that WFA significantly increased service utilization ( = 5870;