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Table 5 Poisson models – analyses of number of years with pain.

From: Analyzing musculoskeletal neck pain, measured as present pain and periods of pain, with three different regression models: a cohort study

Explanatory variables from baseline Exposed cases Simple model Adjusted model
  (Y>0) Rate ratio P-value Rate ratio P-value 95% CI
Women/men 245 1.7 < 0.001 1.6 < 0.001 1.37; 1.79
Overweight 36 0.95 0.525    
Breakfast regularly 280 0.83 0.015 0.96 0.612 0.809; 1.13
Snuff use 9 0.84 0.126 1.0 0.824 0.856; 1.21
Smoking 23 1.4 0.045 1.2 0.210 0.862; 1.78
Physical activity   0.99 0.158 1.0 0.926 0.988; 1.01
High work/study demands (ref: not too high) 189   0.004   0.047  
   Not affecting home life 92 1.0   0.94   0.822; 1.08
   Affecting home life 67 1.4   1.3   0.998, 1.58
High home life demands 21 1.4 0.039 1.1 0.532 0.802; 1.51
Work/study time   1.00 0.746    
Good relationship with superiors 327 0.80 0.099 0.87 0.321 0.652; 1.17
Good relationship with colleagues 322 0.88 0.284    
Computer use pattern
(ref: 0)
185   0.003   0.024  
   One 4 h period without a break 53 1.2   1.1   0.953; 1.36
   At least two 4 h periods without a break 110 1.2   1.2   1.04; 1.37
Asthma 36 1.4 0.006 1.3 0.102 0.934; 1.69
Perceived stress 239 1.4 < 0.001 1.3 < 0.001 1.17; 1.51
  1. All rate ratios are adjusted for gender (using men as the reference category). For the adjusted odds ratios both p-values and 95% confidence intervals (CI) are presented. The total number of respondents varied between N = 677 – 801, because of incomplete data.