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Characteristics of 173 subjects at baseline
| Characteristic | Mean (SD) or number (%) |
|---|---|
| Age, years | 61.8 (9.6) |
| Body mass index, kg/m2 | 30.5 (5.1) |
| Sex | |
| Female | 134 (77%) |
| Male | 39 (23%) |
| Race | |
| Black | 35 (25%) |
| White | 138 (20%) |
| Years of knee pain | 9.0 (9.6) |
| Years of osteoarthritis diagnosis | 5.9 (6.2) |
| WOMAC pain | 4.9 (4.1) |
| Osteophytes | 143 (83%) |
| Change in joint space width at 30 months | −0.68 (0.64) |
WOMAC, Western Ontario and McMaster Universities Arthritis Index.
