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Table 1 Baseline descriptive statistics of the study population

From: Psychosocial work environment factors and weight change: a prospective study among Danish health care workers

  Men Women
Variable N % Mean S.D N % Mean S.D
Baseline 2004/2005         
Age 153   46 8.25 3982   45 8.45
Smoke status         
Smoker 32 20.92 . . 1389 35.18 . .
Non-smokera 121 79.08 . . 2559 64.82 . .
BMI (kg/m2) 151   25.97 3.30 3804   24.89 4.34
Cohabitation         
Living with a partner or spouse 122 80.79 . . 3245 82.38 . .
Living alone/other 29 19.21 . . 694 17.62 . .
Work Hours         
Day schedule 122 79.74 . . 2658 66.87 . .
Fixed evening shift 17 11.11 . . 581 14.62 . .
Fixed night shift 5 3.27 . . 181 4.55 . .
Alternating day/evening shift 8 5.23 . . 441 11.09 . .
Alternating evening/night shift 0 0.00 . . 27 0.68 . .
Alternating day/evening/night shift 1 0.65 . . 87 2.19 . .
Type of work position         
Managers 45 29.41 . . 267 6.71 . .
Health care workers 73 47.71 . . 3378 84.83 . .
Other (eg. janitors, secretaries) 35 22.88 . . 337 8.46 . .
Follow-up 2008         
BMI (kg/m2) 150   26.21 3.24 3776   25.37 4.62
Change in BMI         
Unchanged weight 125 83.89 . . 2853 77.72 . .
BMI gain of 2 kg/m2 16 10.74 . . 583 15.88 . .
BMI loss of 2 kg/m2 8 5.37 . . 235 6.40 . .
  1. a including previous smokers.