Oversampling multigenerational families & immigrant groups in the NJ Population Health Cohort Study

Abstract

The New Jersey Population Health Cohort Study is the largest study to date to explore factors that influence health and well-being in the state. More specifically, the study seeks to improve our understanding of how life events and stress affect health and resilience, and identify health disparities encountered by historically disadvantaged groups, multigenerational families, and immigrant groups. To help ensure that precision targets for planned analytical investigations are achieved for the overall study and specifically for multigenerational families and immigrant groups, oversampling strategies are employed. The study also includes some nonprobability-based design features that include respondent driven sampling to include rare populations of immigrants. In this manuscript, attention is given to the study's analytic objectives, features of its sample design, its implemented oversampling strategies, and expected sample yields. Planned analyses will examine the performance of the sampling strategy for identifying groups of interest.