Behavioral and health status outcomes of an unreinforced, self-help education program for arthritis patients taught by lay persons were examined in 2 ways: a 4-month randomized experiment and a 20-month longitudinal study. At 4 months, experimental subjects significantly exceeded control subjects in knowledge, recommended behaviors, and in lessened pain. These changes remained significant at 20 months. The course was inexpensive and well-accepted by patients, physicians, and other health professionals.As the prevalence of chronic disease increases, so does the potential usefulness of health education. An informed patient can, in theory, play an important role in reducing predisposing factors and in managing established illness.While there is evidence that patient education can change behaviors and health status in some settings (1,2), this is not clear in the case of arthritis education. Arthritis education increases knowledge (3,16) and sometimes influences health behaviors, such as compliance with treatment regimens, the practice of joint protection, or exercise (6,9,12,15,17,18, and Harlowe D, Yu P: unpublished observations). Some investigators have reported improvements in psychosocial factors, such as coping, family communication, or depression (6,7,9,11,15,17). Finally, a few studies