Stress processes and the misuse of drugs in older adults.

There is increasing concern about the misuse of drugs among the elderly. We assessed misuse, including drug usage, drug interactions across pharmacologic classes, and multiple drugs in the same pharmacologic class, in a community sample of 65 to 74-year-olds, and evaluated its relation to stress and coping processes and psychological and somatic health. Assessments were made repeatedly over a 6-month period. Results indicated that misuse was multidimensional and widespread. Misusers did not differ from nonmisusers on antecedent psychosocial variables, nor did they report more hassles or cope differently than nonmisusers. However, misusers and nonmisusers differed on their subjective experience of stressful encounters; misusers experienced their hassles as more intense, and they experienced more threat emotions and more dissatisfaction with their coping than did nonmisusers. Misuse was also associated with long-term psychological satisfaction, psychological symptoms, and somatic health.