Table 3.
Prevalence of musculoskeletal diseases
| MSK diseases | Total n = 1061 (%; IC 95 %) |
Mixtecs n = 937 (%; IC 95 %) |
Chontals n = 124 (%; IC 95 %) |
|---|---|---|---|
| Mechanical back pain | 170 (16.0; 13.8–18.3) | 157 (16.7; 14.4–19.3) | 13 (10.4; 5.7–17.2)a |
| Inflammatory back pain b | 44 (4.1; 3.0–5.5) | 36 (3.8; 2.7–5.2) | 7 (5.6; 2.2–11.2) |
| Osteoarthritis c | 157 (14.7; 12.7–17.0) | 117 (12.5; 10.4–14.7) | 40 (32.2; 24.1–41.2) a |
| MSK disorders | 65 (6.1; 4.7–7.7) | 64 (6.8; 5.3–8.6) | 1 (0.8; 0.02–4.4) a |
| Rheumatic regional pain syndrome | 53 (4.9; 3.7–6.4) | 39 (4.1; 2.9–5.6) | 14 (11.2; 6.3–18.2) a |
| Rheumatoid arthritis | 4 (0.3; 0.1–0.9) | 4 (0.4; 0.1–1.0) | – |
| Systemic lupus erythematosus | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.002–0.5) | – |
| Dermatomyositis | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.002–0.5) | – |
| Ankylosing Spondylitis | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.002–0.5) | – |
| Gout | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.002–0.5) | – |
| Family with multiple cases | 1 (0.09; 0.002–0.5) | 1 (0.1; 0.002–0.5) | – |
a p < 0.01
bBack pain Questionnaire was administered to 187 respondents, of which 132 met at least one criterion of 5 selected for the questionnaire. The most common criterion was improvement in pain level with exercise (n = 124), followed by morning stiffness >30 min (n = 93), night pain (n = 44), buttock pain (n = 36)
cLocalized and generalized OA