TABLE 1.
Patient demographic and clinical characteristics
| Characteristic | All patients (N = 288,715) | Patients <65 years (n = 96,940) | Patients ≥65 years (n = 191,775) |
|---|---|---|---|
| Age at index date (years), mean (SD) | 67.7 (15.0) | 50.5 (11.2) | 76.3 (7.1) |
| Age categories (years), n (%) | |||
| 18 to <30 | 5677 (2.0) | 5677 (5.9) | NA |
| 30 to <40 | 12,182 (4.2) | 12,182 (12.6) | NA |
| 40 to <50 | 20,689 (7.2) | 20,689 (21.3) | NA |
| 50 to <60 | 31,574 (10.9) | 31,574 (32.6) | NA |
| 60 to <70 | 65,653 (22.7) | 26,818 (27.7) | 38,835 (20.3) |
| 70 to <80 | 89,860 (31.1) | 0 (0.0) | 89,860 (46.9) |
| ≥80 | 63,080 (21.8) | 0 (0.0) | 63,080 (32.9) |
| Sex, male, n (%) | 118,976 (41.2) | 40,645 (41.9) | 78,331 (40.8) |
| Follow‐up duration (days), median (IQR) | 736.0 (329.0, 1295.0) | 775.0 (341.0, 1364.0) | 715.0 (323.0, 1262.0) |
| Follow‐up duration on treatment (days), median (IQR) | 445.0 (161.0, 960.0) | 458.0 (161.0, 1008.0) | 439.0 (161.0, 939.0) |
| Diagnosis, n (%) | |||
| OA | 68,556 (23.7) | 19,171 (19.8) | 49,385 (25.6) |
| CLBP | 174,637 (60.5) | 65,568 (67.6) | 107,069 (55.8) |
| OA and CLBP | 45,522 (15.8) | 10,201 (10.5) | 35321 (18.4) |
| Affected joints in OA patients, n (%) | |||
| Coxarthrosis | 19,255 (6.7) | 6,232 (6.4) | 13,023 (6.8) |
| Gonarthrosis | 94,823 (32.8) | 23,140 (23.9) | 71,683 (37.4) |
| Comorbidities, n (%) | |||
| Gastrointestinal disease | 47,034 (16.3) | 13,485 (13.9) | 33,549 (17.5) |
| Renal disease | 12,828 (4.4) | 2701 (2.8) | 10,127 (5.3) |
| Cardiovascular disease (excluding hypertension) | 101,320 (35.1) | 19,556 (20.2) | 81,764 (42.6) |
| Hypertension | 102,769 (35.6) | 22,068 (22.8) | 80,701 (42.1) |
| Diabetes mellitus | 66,343 (23.0) | 16,480 (17.0) | 49,863 (26.0) |
| Health‐care facility setup | |||
| Public (government) | 114,750 (39.7) | 40,303 (41.6) | 74,447 (38.8) |
| Public (local) | 50,135 (17.4) | 15,670 (16.2) | 34,465 (18.0) |
| University | 13,745 (4.8) | 5847 (6.0) | 7898 (4.1) |
| Private | 110,085 (38.1) | 35,120 (36.2) | 74,965 (39.1) |
Abbreviations: CLBP, chronic low back pain; IQR, interquartile range; OA, osteoarthritis.