Impact of a patient-centered, computer-based health information/support system.

BACKGROUND

Consumer health information systems potentially improve a patient's quality of life and activate patient self-care.

OBJECTIVES

Test a computerized system (CHESS: Comprehensive Health Enhancement Support System), which, in this application, provided HIV-positive patients with information, decision support, and connections to experts and other patients. Would patients given in-home access to computers use the system, improve their quality of life, reduce health-risk behaviors, and use medical services more efficiently?

RESEARCH DESIGN

Randomized controlled trial: CHESS computers in experimental subjects' homes in Madison or Milwaukee, Wisconsin, for 3 or 6 months; controls received no intervention. Subjects were compensated for self-report surveys completed before, during, and after CHESS installation.

SUBJECTS

Of 204 HIV-positive patients recruited (90% male, 84% white, average education some college, and 65% experiencing HIV-related symptoms), 90% completed the study.

MEASURES

Self-reports of quality of life and frequency and duration of use of medical services.

RESULTS

CHESS was used daily with little difference between demographic subgroups. While CHESS was in the home, its users reported quality-of-life improvements: active life, negative emotions, cognitive function, social support, and participation in health care. They also reported spending less time during ambulatory care visits, making more phone calls to providers, and experiencing fewer and shorter hospitalizations.

CONCLUSIONS

A computer-based personal health support system can improve a patient's quality of life and promote more efficient use of health care.