We recruited the initial sample in two phases (Wave 1). In the first phase, interviewers selected one to two eligible persons per household by doorstep screening using a computer-generated probability selection method. Once successfully recruited and consented, participants completed household surveys and 24-hr dietary recalls using the United State Department of Agriculture's Automated Multiple Pass Method (AMPM; Raper, Perloff, Ingwersen, Steinfeldt, & Anand, 2004). The 2-hr household survey measures covered the following: subjective well-being, activities of daily living, physical functioning, usual source of care, utilization of care, ethnic identity, discrimination, religiosity and coping, active coping, household composition, demographics, neighborhood characteristics, dental health, and health insurance. Phase 1 concluded with an examination appointment for Phase 2 on mobile medical research vehicles (MRVs) parked in participants’ neighborhoods. Schematic floor plans and pictures of the MRVs are available on the HANDLS Web site (http://handls.nih.gov).
