Table 1.
Baseline patient characteristics.
| Characteristics | All (3602) |
No outcome (N = 2906) |
Outcome (N = 696) |
P value |
|---|---|---|---|---|
| Sex (Female), N (%) | 2838 (78.8) | 2242 (77.2) | 596 (85.6) | 0.22 |
| Age group, N (%) | ||||
| 18–29 | 68 (1.9) | 61 (2.1) | 7 (1.0) | 0.4598 |
| 30–39 | 199 (5.5) | 182 (6.3) | 17 (2.4) | 0.6932 |
| 40–49 | 419 (11.6) | 358 (12.3) | 61 (8.8) | 0.1107 |
| 50–59 | 1209 (33.5) | 953 (32.8) | 256 (36.8) | 0.1001 |
| 60–69 | 928 (25.8) | 752 (25.8) | 176 (25.3) | 0.9857 |
| 70–79 | 602 (16.7) | 470 (16.2) | 132 (18.9) | 0.0831 |
| Over 80 | 177 (4.9) | 130 (4.5) | 47 (6.8) | 0.8071 |
| General comorbidities | ||||
| Diabetes mellitus | 164 (4.6) | 130 (4.5) | 34 (5.0) | 0.03 |
| Obesity | 7 (0.2) | 6 (0.2) | 1 (0.1) | 0.42 |
| Osteoarthritis | 441 (12.2) | 339 (11.7) | 102 (14.7) | 0.09 |
| Rheumatoid arthritis | 21 (0.6) | 16 (0.5) | 5 (0.7) | 0.23 |
| Depressive disorder | 84 (2.3) | 66 (2.3) | 18 (2.6) | 0.12 |
| Medication use | ||||
| Antidepressants | 1001 (27.8) | 797 (27.4) | 204 (29.3) | 0.04 |
| Opioids | 968 (26.9) | 782 (26.9) | 186 (26.7) | < 0.001 |
| Antiinflammatory and antirheumatic | 1555 (43.2) | 1,252 (43.1) | 303 (43.5) | < 0.001 |