After approximately seven years of the active phase of the trial, the men were followed for an additional 9 years for mortality and cause of death. To test the major study hypotheses, the investigators coded all Type A Structured Interview tapes for Potential for Hostility, and components of hostility (Style, Intensity, Content) and constructed and validated a self-report measure of hostility from items administered to all participants. Cox proportional hazard regression techniques were used to test the association of hostility, depression, and stressful life events with all cause and CVD mortality. If the major study hypotheses were confirmed, then educational attainment, baseline risk factors, change in risk factors, and adherence indicators would be included in subsequent analyses.