| Class 1 | Class 2 | Class 3a |
---|---|---|---|
More complaints in neck, shoulder, and joints (n = 46) | More complaints in back, upper back (n = 137) | Low complaints in all musculoskeletal sites (n = 175) | |
OR (95% CI) | OR (95% CI) | Reference | |
Model 1 | 1.96 | 1.35 | – |
(1.41, 2.71) | (1.07, 1.72) | ||
Model 2 | 1.97 | 1.21 | – |
(1.37, 2.81) | (0.93, 1.57) |