Table 1 Sample-weighted baseline characteristics
No baseline depression (Weighted N = 97.0) | Baseline depression (Weighted N = 25.0) | No baseline anxiety (Weighted N = 90.0) | Baseline anxiety (Weighted N = 32.0) | |
|---|---|---|---|---|
Age, mean (SD) | 55.5 (9.0) | 55.8 (9.9) | 56.5 (8.8) | 52.9 (9.0) |
Age decade, n (%) | ||||
40–49 | 21.6 (22.3) | 9.0 (36.1) | 16.4 (18.2) | 14.2 (44.5) |
50–59 | 47.8 (49.3) | 6.7 (26.7) | 41.7 (46.3) | 12.8 (39.9) |
60–69 | 17.8 (18.4) | 5.1 (20.2) | 21.4 (23.7) | 1.5 (4.8) |
70–79 | 9.8 (10.1) | 4.2 (17.0) | 10.6 (11.8) | 3.5 (10.8) |
Female, n (%) | 59.5 (61.4) | 8.5 (33.9) | 48.8 (53.8) | 19.5 (61.1) |
Body mass index, mean (SD) | 25.9 (4.2) | 26.5 (3.3) | 26.2 (4.0) | 25.7 (4.1) |
BMI ≥ 25, n (%) | 49.9 (51.4) | 17.4 (69.6) | 51.5 (57.2) | 15.8 (49.4) |
Effusion, n (%) | 17.9 (18.5) | 6.0 (24.0) | 16.1 (17.9) | 7.8 (24.6) |
Crepitus, n (%) | ||||
None | 29.2 (30.2) | 8.5 (34.0) | 27.0 (29.9) | 10.8 (33.8) |
Fine | 49.6 (51.1) | 11.9 (47.4) | 45.2 (50.2) | 16.3 (50.9) |
Coarse | 18.2 (18.7) | 4.6 (18.5) | 17.9 (19.9) | 4.9 (15.3) |
Malalignment, n (%) | 11.5 (11.9) | 4.6 (18.3) | 10.7 (11.9) | 5.4 (16.9) |
Quadriceps atrophy, n (%) | 30.5 (31.4) | 7.5 (30.0) | 25.2 (27.9) | 12.8 (40.1) |
Flexion (degrees), mean (SD) | 134.3 (8.6) | 133.2 (6.9) | 134.4 (8.0) | 133.2 (8.8) |
Flexion contracture (deg.), mean (SD) | 1.5 (3.9) | 1.7 (2.8) | 1.8 (3.9) | 0.6 (2.7) |
Kellgren-Lawrence grade, n (%) | ||||
0 | 40.8 (42.0) | 8.9 (35.7) | 36.1 (40.1) | 13.6 (42.6) |
1 | 14.0 (14.4) | 10.0 (40.2) | 17.1 (19.0) | 6.9 (21.6) |
2 | 24.9 (25.7) | 2.5 (10.0) | 19.9 (22.1) | 7.5 (23.5) |
3+ | 17.3 (17.9) | 3.5 (14.1) | 16.9 (18.8) | 3.9 (12.3) |
WOMAC pain, mean (SD) | 18.0 (16.4) | 23.4 (19.9) | 18.1 (16.5) | 21.9 (19.5) |
WOMAC pain (25+) | 23.8 (24.6) | 8.4 (33.7) | 22.6 (25.1) | 9.7 (30.4) |
WOMAC stiffness, mean (SD) | 2.4 (2.4) | 2.1 (1.9) | 2.3 (2.4) | 2.3 (2.0) |
WOMAC stiffness (25+) | 38.1 (39.3) | 11.1 (44.5) | 35.7 (39.6) | 13.6 (42.4) |
Self-reported knee swelling in last 12 months, n (%) | 54.8 (56.5) | 16.5 (66.0) | 46.3 (51.4) | 25.1 (48.5) |
Painful joint count, mean (SD) | 7.8 (6.8) | 9.4 (12.3) | 7.5 (7.0) | 9.8 (11.4) |
Previous physician diagnosis knee OA | ||||
No | 57.1 (58.9) | 16.3 (65.4) | 56.6 (62.9) | 16.8 (52.7) |
Probable | 30.4 (31.3) | 6.1 (24.4) | 24.9 (27.7) | 11.6 (36.2) |
Definite | 9.5 (9.8) | 2.6 (10.3) | 8.5 (9.5) | 3.6 (11.2) |