Table 2 The incidence of MSDs in different parts of the body among coal miners with different mental disorders [n (%)]
Group | Neck | Shoul-der | Upper back | Elbow | Lower back | Wrist | Hip | Knee | Foot | MSDs |
|---|---|---|---|---|---|---|---|---|---|---|
Mental disorder group | 284 (44.9) | 251 (39.7) | 225 (35.5) | 114 (18.0) | 329 (52.0) | 145 (22.9) | 99 (15.6) | 206 (32.5) | 135 (21.3) | 453 (71.6) |
Non- Mental disorder group | 246 (23.6) | 218 (20.9) | 153 (14.7) | 78 (7.5) | 329 (31.6) | 110 (10.6) | 66 (6.3) | 171 (16.4) | 82 (7.9) | 495 (47.5) |
χ2 | 82.266 | 68.532 | 98.074 | 42.973 | 68.712 | 46.538 | 38.400 | 58.760 | 63.241 | 92.791 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |