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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]

From: Remarkable increase of musculoskeletal disorders among soldiers preparing for international missions – comparison between 2002 and 2012

   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
  1. Hosmer-Lemeshow test p = 0.95