Post-baseline interviews were conducted for both samples 1, 3, 5, and 7 years later using Computer Assisted Telephone Interviewing (CATI) with questionnaires similar to the baseline instrument. Follow-up response rates for the 1, 3, 5, and 7-year post-baseline interviews were 84%, 82%, 79%, and 75%, respectively (88%, 83%, 81%, and 77% respectively for whites, 77%, 79%, 75%, and 72% respectively for blacks, 82%, 82%, 77%, 76% respectively for Hispanics, and 78%, 76%, 73%, 68% respectively for Other). Due to the small sample size of the Hispanic and other race/ethnicity categories, the current analysis includes only the white and black participants.
