Long-term exercise therapy resolves ethnic differences in baseline health status in older adults with knee osteoarthritis.

Objectives: To determine whether ethnicity was associated with baseline and 18-month health status within a merged sample of older adults with knee osteoarthritis (OA) from the Fitness Arthritis in Seniors Trial and the Arthritis, Diet, and Activity Promotion Trial.

Design: Cross-sectional and prospective study.

Setting: Center-based exercise therapy at two universities.