Table 1 Cohort characteristics
Characteristics | Complete case (n = 26,003) | Index knee Joint (n = 19,391) | Index hip Joint (n = 6,612) |
|---|---|---|---|
Age, mean (SD), years | 64.8 (9.7) | 64.5 (9.7) | 65.8 (9.5) |
BMI*, mean (SD), kg/m2 | 28.3 (5.3) | 28.7 (5.3) | 27.1 (4.8 |
Sex, F (%) Yes | 18,784 (72.2) | 13,947 (71.9) | 4837 (73.2) |
Most affected joint, n (%) Knee | 19,391 (74.6) | NA | NA |
Pain medication, n (%) Yes | 16,370 (63.0) | 12,038 (62.1) | 4332 (65.5) |
Depression, n (%) Yes | 1137 (4.4) | 867 (4.5) | 270 (4.1) |
Physical activity level, median (IQR), UCLA* | 6 (4, 7) | 6 (4, 7) | 6 (4, 7) |