Group | Neck | Shoul-der | Upper back | Elbow | Lower back | Wrist | Hip | Knee | Foot | MSDs |
---|---|---|---|---|---|---|---|---|---|---|
ERI > 1 | 271 (35.6) | 265 (34.8) | 219 (28.8) | 116 (15.2) | 351 (46.1) | 150 (19.7) | 91 (12.0) | 219 (28.8) | 127 (16.7) | 475 (62.4) |
ERI ≤ 1 | 259 (28.3) | 204 (22.3) | 159 (17.4) | 76 (8.3) | 307 (33.6) | 105 (11.5) | 74 (8.1) | 158 (17.3) | 90 (9.8) | 473 (51.8) |
χ2 | 10.158 | 32.201 | 30.785 | 19.639 | 27.355 | 21.756 | 6.973 | 31.439 | 17.237 | 19.236 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | 0.008 | < 0.001 | < 0.001 | < 0.001 |