Table 2.
Key patient demographic and clinical data.
| Characteristic | OAIa (n=3711) | MOSTb (n=2236) | |||
| Age, mean (SD) | 61.0 (9.1) | 62.1 (8.1) | |||
| BMI, mean (SD) | 28.4 (4.8) | 30.4 (5.9) | |||
| Sex (female), n (%) | 2149 (57.91) | 1297 (58.01) | |||
| Ethnicity (white), n (%) | 3082 (83.05) | 1932 (86.40) | |||
| Blood pressure (hypertension stage≥1), n (%) | 1847 (49.77) | 1008 (45.08) | |||
| Other arthritis, n (%) | 1454 (39.18) | 1071 (47.90) | |||
| Analgesic medication for knee OAc (any), n (%) | 845 (22.77) | 1804 (80.68) | |||
| KLGd, n (%) | |||||
|
|
Right knee, grade 1 or higher | 2294 (61.82) | 1180 (52.77) | ||
|
|
Left knee, grade 1 or higher | 2206 (59.44) | 1264 (56.53) | ||
| WOMACe-total, mean (SD) | |||||
|
|
Right knee | 10.7 (10.3) | 18.6 (17.5) | ||
|
|
Left knee | 10.7 (10.4) | 18.3 (17.5) | ||
| Baseline CES-Df, mean (SD) | 6.3 (6.0) | 6.7 (6.2) | |||
| Depression at 2-year visit, n (%) | 342 (9.22) | 265 (11.85) | |||
aOAI: Osteoarthritis Initiative.
bMOST: Multicenter Osteoarthritis Study.
cOA: osteoarthritis.
dKLG: Kellgren-Lawrence Grade.
eWOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.
fCES-D: Center for Epidemiological Studies Depression Scale.