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Table 1 Selected variables of the participants aged 18–79 in the workforce subsample and the total sample in relation to key outcome variables

From: Physical activity patterns and socioeconomic position: the German National Health Interview and Examination Survey 1998 (GNHIES98)

  Workforce sample a Vigorous work activity Total sample Sports ≥ 2 hours/week Sitting time weekdays Energy expenditure b
  n % % n % % mean hours MET/24 hours
Total sample 3809 100 40 6800 100 19 6.9 49.2
Age group (years)         
  17-39 1898 50 42 2713 42 24 6.7 50.8
  40-59 1788 47 38 2563 39 17 6.9 49.7
  60-79 123 3 33 1524 24 11 6.8 45.4
Sex         
  men 2109 55 43 3301 49 22 7.2 51.2
  women 1700 45 36 3499 51 15 6.7 47.3
Region in Germany         
  former East 1221 32 47 2312 34 13 6.8 50.1
  former West 2588 68 37 4488 66 21 7.0 48.7
Educational level         
  primary 1291 34 54 2929 43 14 6.5 49.4
  secondary 1851 49 40 2921 43 21 6.9 50.0
  tertiary 667 18 12 950 14 25 8.3 45.8
Occupational status         
  low 1362 36 61 2675 39 13 6.1 51.0
  middle 1387 36 29 2225 33 18 7.2 48.2
  high 875 23 24 1260 19 23 7.9 47.5
  missing 185 5 41 640 9 34 7.3 48.2
Income level         
  low 864 23 53 1819 27 15 6.4 50.5
  middle 1060 28 40 1856 27 19 6.8 49.7
  high 1296 34 27 1796 26 24 7.8 47.6
  missing 589 15 51 1329 20 16 6.6 48.8
Body mass index         
  <25 1646 43 37 2705 40 24 6.9 49.0
  25 - <30 1497 39 40 2648 39 18 6.9 49.7
  ≥30 654 17 46 1403 21 9 6.9 48.8
  missing 12 <1   44 <1    
Self-perceived health         
  excell./very good 936 25 33 1347 20 32 7.1 49.9
  good 2440 64 41 4258 63 16 6.8 49.5
  fair/poor 431 11 52 1192 17 11 7.1 47.0
  missing 2 <1   3 <1    
  1. a Workforce sample: respondents indicating that they are ‘currently working’. b Energy expenditure assessed on the basis of self-reported activities within 24h, expressed in metabolic equivalents (MET) kcal/kg, 1 MET = a person’s caloric consumption at complete rest.