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Table 2 Stepwise adjusted odds ratios (OR) of physical activity and media use according to parental education, boys and girls 11–17 years

From: Physical activity, aerobic fitness and parental socio-economic position among adolescents: the German Health Interview and Examination Survey for Children and Adolescents 2003–2006 (KiGGS)

  High leisure time activity   High media use  
  Basic modela Final modelb Basic modela Final modelc
  OR 95% CI OR 95% CI OR 95% CI OR 95% CI
Boys (n = 2677)     
Parental education     
  Primary 1.0 1.0 1.0 1.0
  Secondary 0.9 (0.8-1.2) 0.9 (0.7-1.2) 0.8 (0.6-1.0) 0.9 (0.7-1.2)
  Tertiary 0.8 (0.6-1.0) 0.8 (0.6-1.1) 0.5 (0.4-0.7) 0.7 (0.5-0.9)
Parental occupation     
  Low 1.0 1.0 1.0 1.0
  Middle 0.8 (0.7-1.0) 0.8 (0.7-1.0) 0.5 (0.4-0.7) 0.6 (0.5-0.7)
  High 0.8 (0.6-1.0) 0.9 (0.7-1.1) 0.5 (0.4-0.6) 0.6 (0.5-0.8)
Household income     
  Low 1.0 1.0 1.0 1.0
  Middle 0.9 (0.8-1.1) 1.0 (0.8-1.2) 0.8 (0.6-1.0) 0.9 (0.7-1.2)
  High 0.9 (0.7-1.1) 0.9 (0.7-1.2) 0.7 (0.5-0.8) 1.0 (0.8-1.3)
Girls (n = 2574)     
Parental education     
  Primary 1.0 1.0 1.0 1.0
  Secondary 1.3 (1.0-1.6) 1.2 (0.9-1.5) 0.7 (0.6-0.9) 0.8 (0.6-1.1)
  Tertiary 1.2 (0.9-1.5) 1.0 (0.7-1.3) 0.3 (0.3-0.5) 0.5 (0.3-0.6)
Parental occupation     
  Low 1.0 1.0 1.0 1.0
  Middle 1.1 (0.9-1.4) 1.1 (0.9-1.4) 0.5 (0.4-0.7) 0.7 (0.6-0.9)
  High 1.3 (1.0-1.6) 1.2 (0.9-1.6) 0.5 (0.4-0.6) 0.7 (0.6-1.0)
Household income     
  Low 1.0 1.0 1.0 1.0
  Middle 0.9 (0.7-1.1) 0.9 (0.7-1.1) 0.7 (0.6-0.9) 0.9 (0.7-1.2)
  High 1.2 (1.0-1.5) 1.1 (0.9-1.4) 0.6 (0.5-0.7) 1.0 (0.8-1.3)
  1. aModel adjusted for age groups and region strata East–west Germany (separate models for education, occupation and income). bAdjusted as the basic model and also for ‘physical wellbeing’ , ‘parental support for leisure time activity’ among boys, and ‘BMI-for-age’ among boys (education, occupation and income in combined model). cAdjusted as the basic model and also for ‘BMI-for-age’ among girls, ‘physical wellbeing’ among girls and ‘parental support for leisure time activity’ (education, occupation and income in combined model).