Table 3.
Multiple logistic regression model; initial and final model for factors associated with one-year prevalence of musculoskeletal disorders (MSD). Odds ratio (OR), 95% confidence interval (CI) of odds ratio and p-value. Significant level p < 0.05. Goodness-of-fit of the model according to Hosmer-Lemenshow test [17]
| Initial model | Final model | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| n | OR | 95% CI | p-value | OR | 95% CI | p-value | |||
| 766 | Lower | Upper | Lower | Upper | |||||
| Mission | |||||||||
| 2002 | 520 | 1.00 | |||||||
| 2012 | 246 | 4.91 | 3.46 | 6.98 | < 0.001 | 5.28 | 3.77 | 7.40 | < 0.001 |
| Gender | |||||||||
| men | 709 | 1.00 | |||||||
| women | 57 | 1.75 | 0.93 | 3.29 | 0.083 | ||||
| Age group (years) | |||||||||
| 20–30 | 600 | 1.00 | |||||||
| 31–40 | 113 | 1.88 | 1.21 | 2.94 | 0.005 | 1.91 | 1.23 | 2.96 | 0.004 |
| 41- | 53 | 2.48 | 1.28 | 4.82 | 0.007 | 2.84 | 1.48 | 5.45 | 0.002 |
| BMI | 766 | 1.02 | 0.96 | 1.09 | 0.456 | ||||
| Workload | |||||||||
| light/easy | 494 | 1.00 | |||||||
| hard/heavy | 272 | 1.22 | 0.86 | 1.72 | 0.265 | ||||
| Perceived health | |||||||||
| Physical body | |||||||||
| bad | 5 | 1.67 | 0.22 | 12.44 | 0.619 | ||||
| good | 401 | 1.00 | |||||||
| excellent | 360 | 0.65 | 0.47 | 0.89 | 0.008 | 0.64 | 0.46 | 0.88 | 0.006 |
Hosmer-Lemeshow test p = 0.95