Table 1

Description of participants and means of the outcome indicators according to selected key variables, boys and girls 11–17 years
Study sample Leisure time activity Media use PWC170a Total energy expenditureb
Characteristics n % Mean hours/week Mean hours/day Mean watt/kg body weight Mean MET/24 hours
Total 5251 6.3 5.9 2.1 44.2
Age (years)
  11 - 13 2401 46 6.5 4.8 2.0 45.7
  14 - 15 1522 29 6.4 6.7 2.1 43.4
  16 - 17 1328 25 5.6 7.0 2.1 42.5
Sex
  boys 2677 51 7.9 5.9 2.3 45.5
  girls 2574 49 4.6 5.9 1.9 42.9
Region in Germany
  Former East 1756 34 6.2 6.3 2.1 43.7
  Former West 3495 66 6.3 5.7 2.1 44.5
Parental education
  Primary 972 19 6.7 6.5 2.0 43.8
  Secondary 2835 54 6.4 6.1 2.1 44.1
  Tertiary 1444 28 5.7 5.1 2.1 44.8
Parental occupation
  Low 1526 29 6.9 6.8 2.0 43.6
  Middle 1708 33 6.1 5.7 2.1 44.4
  High 1871 36 5.9 5.3 2.1 44.6
  Missing 146 3 6.4 6.9 2.0 43.2
Household income
  Low 1680 32 6.5 6.3 2.0 44.0
  Middle 1452 26 6.3 5.9 2.1 44.3
  High 1693 32 5.9 5.5 2.1 44.5
  Missing 426 8 6.6 6.2 2.1 44.1
BMI-for-age (WHO z-scores)
  Below -2 Z 83 2 5.4 5.4 2.3 44.2
  -2 to -1 Z 478 9 6.5 5.3 2.2 45.1
  -1 to +1 Z 3310 63 6.1 5.9 2.1 44.2
  +1 to +2 Z 961 18 6.7 6.1 1.9 44.4
  Above +2 Z 419 8 6.5 6.6 1.6 43.5
Physical wellbeing
  Low 1902 36 5.7 6.3 2.0 43.3
  Middle 1520 29 6.2 5.8 2.1 44.3
  High 1689 32 7.1 5.5 2.1 45.3

aPWC170, physical work capacity at a heart rate of 170 heart beats per minute. bEnergy expenditure assessed on the basis of self-reported activities within 24 h, expressed in metabolic equivalents (MET) kcal/kg, 1 MET = a person’s caloric consumption at complete rest.

Finger et al.

Finger et al. International Journal of Behavioral Nutrition and Physical Activity 2014 11:43   doi:10.1186/1479-5868-11-43

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