Table 2.
Characteristics of the sample according to Health Assessment Questionnaire (HAQ) categories (N=2581).
| Covariate | HAQ = 0 N=1,075 (41.7%) | 0<HAQ<1 N=935 (36.2%) | HAQ≥1 N=571 (22.1%) | p-value |
|---|---|---|---|---|
| Mean age (SD) | 62.7 (9.9) | 63.4 (10.4) | 64.5 (11.3) | <0.0001 |
| Age groups, n/N (%) | ||||
| 44 to <55 | 280/1075 (26.1) | 237/935 (25.3) | 135/571 (23.6) | |
| 55 to <65 | 371/1075 (34.5) | 303/935 (32.4) | 186/571 (32.6) | <0.0001 |
| 65 to <75 | 283/1075 (26.3) | 253/935 (27.1) | 126/571 (22.1) | |
| 75+ | 141/1075 (13.1) | 142/935 (15.2) | 124/571 (21.7) | |
| African–American, n/N (%) | 307/1075 (28.6) | 306/935 (32.7) | 228/571 (39.9) | <0.0001 |
| Women, n/N (%) | 612/1075 (56.9) | 622/935 (66.5) | 445/571 (77.9) | <0.0001 |
| Mean BMI (SD) | 29.2 (5.4) | 30.7 (6.7) | 33.1 (8.0) | <0.0001 |
| Radiographic hip OA, n/N (%) | 307/1075 (28.6) | 281/935 (30.0) | 202/571 (35.4) | 0.0037 |
| Radiographic knee OA, n/N (%) | 279/1075 (26.0) | 346/935 (37.0) | 274/571 (48.0) | <0.0001 |
| Hip symptoms, n/N (%) | 216/1075 (20.1) | 387/935 (41.4) | 382/571 (66.9) | <0.0001 |
| Knee symptoms, n/N (%) | 308/1075 (28.7) | 522/935 (55.8) | 460/571 (80.6) | <0.0001 |
| Median CES-D score (SD) | 3.8 (5.9) | 6.6 (7.7) | 12.1 (11.1) | <0.0001 |