Interview-based measures of type A behavior and psychological and task-person indexes of job complexity were obtained from 251 police and fire department employees with sound cardiovascular health. Fol- low-up data on cardiovascular disorder were collected seven years later from participants who had remained with their organizations. The type A behavior pattern predicted cardiovascular disorder over time, and the relationships between the two complexity indexes and cardio- vascular morbidity were positive among individuals with high type A behavior ratings but negative among those with low ratings. We discuss the implications of these findings for worker health and job design
