Sample size and recruitment
RECRUITMENT
This HWePS intervention study is part of a larger community-wide health equity initiative, starting with a community-wide health and wellness survey conducted from November 2020 to January 2021. The sample for the community-wide survey consisted of approximately 700 older adults in the intervention area and 500 older adults in the control area, which is approximately 19.2% and 7.6% of all older adults in each area, respectively (as of October 2020). Informed consent concerning the entire study was obtained by the research team prior to initiating the survey.The recruitment of participants into the HWePS intervention is based on the roster of older adults who participated in the community survey. The sample size of the HWePS intervention is calculated using the G*Power 3.1.9.2 program as follows. We hypothesize an effect size (as the input parameter for G*Power) of 0.2 based on previous community-based health and wellness interventions for older adults’ self-rated health [Enrollment into the study will progress sequentially by clusters based on residents’ 