Methods for studying course of illness with severely mentally ill adults.

This study examined methods for obtaining course of illness data on adults who are severely mentally ill. A convenience sample (N = 60) was recruited within 4 programs serving different subgroups of adults with severe mental illness. Forty-three participants were able to complete follow-up interviews, using a life chart format to report on personal history in the domains of housing, employment, finances, psychiatric service utilization, health problems, use of psychotropic medication, drug and alcohol use, social relationships, and other major life events. Corresponding information was abstracted from treatment records and examined for concordance with self-reports. Results showed distinct areas of concordance, including recent (1 year) life events, psychiatric care, psychotropic medications, and use of alcohol. Areas of disagreement included legal problems, illicit drug use, and general health. With multiple data sources, it is possible to involve a range of adults with severe mental illness in research and to incorporate their knowledge into course of illness studies.