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 |