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Table 1 Pre-test characteristics (demographic) for the control and the intervention group in the HEIA study

From: Changes in adolescents' intake of sugar-sweetened beverages and sedentary behaviour: Results at 8 month mid-way assessment of the HEIA study - a comprehensive, multi-component school-based randomized trial

   Pre-test  
   Control Intervention  
   n = 910 n = 510 p
Age (mean (SD)) 11.2 (0.27) 11.2 (0.26) 0.30
Gender    
Boys (%) 52.0 50.7 0.61
Girls (%) 48.0 49.3  
Weight status    
Normal weight (%) 84.9 88.5 0.06
Overweight (%) 15.1 11.5  
Parental educational level    
< 12 years (%) 32.0 26.3 0.07
13-16 years (%) 35.7 37.8  
> 16 years (%) 32.3 35.9  
  1. p = Pearson Chi-Square/T-test (age)
  2. n vary slightly