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Table 1 Baseline characteristics for intervention and control group in the HEIA study

From: Post-intervention effects on screen behaviours and mediating effect of parental regulation: the HEalth In Adolescents study – a multi-component school-based randomized controlled trial

  Control Intervention p
  (n=908)a (n=510)a  
Age (mean; SD) 11.2 (0.27) 11.2 (0.26) .38
Gender    
Girls (n; %) 434 (47.8%) 253 (49.6%) .55
Weight status    
Overweight/obese (n; %)b 130 (14.5%) 55 (11.4%) .12
Parental education    
Low (≤12 years) (n; %) 275 (31.1%) 129 (26.2%) .15
13-16 years (n; %) 317 (35.8%) 186 (37.7%)  
>16 years (n; %) 293 (33.1%) 178 (36.1%)  
  1. SD: standard deviation.
  2. an varies somewhat for weight status and parental education level.
  3. bOverweight/obese is presented and treated as one group in the analyses due to the low proportion of obese (C=1.6%; I=1.2%).