Table 3.
Prevalence of musculoskeletal disorders and rheumatic diseases in 1656 Qom’s population
| Musculoskeletal disorders and rheumatic disease | Total n (%; 95 % CI) n = 1656 |
Female n (%; 95 % CI) n = 1020 |
Male n (%; 95 % CI) n = 636 |
P valuea |
|---|---|---|---|---|
| Osteoarthritis | 67 (4.0; 3.1–5.1) | 41 (4.0; 2.8–5.4) | 26 (4.0; 2.6–5.9) | 0.5 |
| Rheumatic regional pain syndromes | 48 (2.9; 2.1–3.8) | 44 (4.3; 3.1–5.7) | 4 (0.6;0.1–1.6) | <0.01 |
| Undifferentiated arthritis | 5 (0.3; 0.09–0.7) | 4 (0.3; 0.1–1.0) | 1 (0.1; 0.003–0.8) | 0.3 |
| Mechanical back pain | 333 (20.1; 18.2–22.1) | 186 (18.2; 15.9–20.7) | 147 (8.8; 7.5–10.3) | 0.03 |
| Inflammatory back pain | 4 (0.2; 0.03–0.5) | 0 | 4 (0.6; 0.1–1.6) | – |
| Rheumatoid arthritis | 40 (2.4; 1.7–3.2) | 35 (3.4; 2.4–4.7) | 5 (0.7; 0.2–1.8) | <0.01 |
| Systemic sclerosis (scleroderma) | 2 (0.1; 0.01–0.4) | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.003–0.8) | 0.6 |
| Primary Sjögren syndrome | 2 (0.1; 0.01–0.4) | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.003–0.8) | 0.6 |
| Fibromyalgia | 2 (0.1; 0.01–0.4) | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.003–0.8) | 0.6 |
| Mixed connective tissue disease | 1 (0.06; 0.001–0.3) | 1 (0.09; 0.002–0.5) | 0 | – |
| Systemic lupus erythematosus | 1 (0.06; 0.001–0.3) | 1 (0.09; 0.002–0.5) | 0 | – |
aChi-squared test (dichotomous)