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Table 1 Baseline characteristics of the baseline study sample (n = 30) and the participants that participated at one-year follow-up test of maximal oxygen uptake and those who did not. Values are mean ± SD

From: Improved cardiorespiratory fitness after occupational rehabilitation in merged diagnostic groups

  Baseline study sample (n = 30) Not participating at one-year follow-up (n = 20) Participating at one-year follow-up (n = 10) P*
Men/Women 5/25 2/18 3/7  
Age (years) 45.2 ± 6.7 44.7 ± 6.9 46.3 ± 6.5 0.533
BMI (kg/m2) 27.8 ± 5.6 28.0 ± 5.5 27.5 ± 5.9 0.804
Maximal oxygen uptake 25.1 ± 8.5 24.3 ± 6.1 32.0 ± 10.5 0.021
High physical demands at work, n
 Not at all/to a small extent 10 7 3  
 Somewhat/to a large extent 17 10 7  
HADS anxiety (0–21) 7.4 ± 4.4 7.1 ± 4.6 7.9 ± 4.0 0.637
HADS depression (0–21) 5.7 ± 4.1 6.0 ± 4.4 5.2 ± 3.6 0.632
Quality of life (0–1) 0.80 ± 0.10 0.79 ± 0.11 0.82 ± 0.08 0.531
Average pain last week (0–10) 4.2 ± 1.8 4.8 ± 1.5 3.1 ± 1.9 0.016
ICPC-2 diagnoses, n
 Musculoskeletal 13 11 2  
 Mental 12 6 6  
 Unspecific 2 0 2  
  1. Note: for three persons questionnaire data and diagnosis data was not available
  2. Abbreviations: Body mass index, BMI; Hospital anxiety and depression scale, HADS; International Classification of Primary Care, 2nd ed., ICPC-2
  3. *Independent samples t-test comparison of the two sub-samples not participating at one-year follow-up vs. participating at one-year follow-up