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Table 5 Associations between baseline physical activity and baseline self-reported health, mental distress and externalized symptoms among participants in 2004 and all invitees

From: Response rates and selection problems, with emphasis on mental health variables and DNA sampling, in large population-based, cross-sectional and longitudinal studies of adolescents in Norway

  Participants 2004 All invitees
Gender/ethnicity1 Physical activity 2001     Physical activity 2001    
Health variables collected 0-2 h 3+ h Prevalence ratio 0-2 h 3+ h Prevalence ratio
in 2001 n % n % PR 95% CI n % n % PR 95% CI
Norway/western               
Boys               
Bad/not so good self-reported health 42 14.1 45 5.0 2.8 1.9 4.2 103 16.2 116 6.9 2.4 1.8 3.0
Mental distress - HSCL above cut off 27 8.9 51 5.6 1.6 1.0 2.5 78 12.2 127 7.5 1.6 1.2 2.1
Externalized symptoms 31 10.3 85 9.4 1.1 0.7 1.6 91 14.2 225 13.2 1.1 0.9 1.3
Girls               
Bad/not so good self-reported health 114 19.9 83 8.6 2.3 1.8 3.0 182 20.4 142 10.3 2.0 1.6 2.4
Mental distress - HSCL above cut off 140 24.4 215 21.8 1.1 0.9 1.3 235 26.3 318 22.6 1.2 1.0 1.3
Externalized symptoms 55 9.5 72 7.3 1.3 0.9 1.8 119 13.2 131 9.3 1.4 1.1 1.8
Non western               
Boys               
Bad/not so good self-reported health 6 10.9 11 7.7 1.4 0.5 3.7 21 13.6 24 8.6 1.6 0.9 2.7
Mental distress - HSCL above cut off 12 21.4 12 8.6 2.5 1.2 5.2 24 15.7 25 9.1 1.7 1.0 2.9
Externalized symptoms 9 16.4 15 10.6 1.5 0.7 3.3 24 16.0 36 13.3 1.2 0.7 1.9
Girls               
Bad/not so good self-reported health 38 22.2 6 7.5 3.0 1.3 6.7 61 21.0 12 10.3 2.0 1.1 3.6
Mental distress - HSCL above cut off 56 32.2 29 36.3 0.9 0.6 1.3 89 30.8 36 31.3 1.0 0.7 1.4
Externalized symptoms 19 10.9 8 9.9 1.1 0.5 2.4 33 11.2 10 8.7 1.3 0.7 2.5
  1. Percentage with health symptoms and prevalence ratios (PRs) within categories of physical activity.
  2. 1 Based on self-reported native country of mother and father.