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Table 5 Baseline health and anthropometric characteristics of students, overall and by the assigned strategy

From: PRALIMAP: study protocol for a high school-based, factorial cluster randomised interventional trial of three overweight and obesity prevention strategies

    Educational
strategy
Screening
strategy
Environmental
strategy
  Overall No Yes No Yes No Yes
  N = 5,458 N = 2,483 N = 2,975 N = 2,771 N = 2,687 N = 2,794 N = 2,664
  %/
mean*
SEM** %/
mean*
SD¥ %/
mean*
SD¥ %/
mean*
SD¥ %/
mean*
SD¥ %/
mean*
SD¥ %/
mean*
SD¥
Body mass index (kg/m 2 ) 21.7 0.1 21.5 3.3 21.7 3.6 21.7 3.7 21.5 3.3 21.6 3.6 21.6 3.4
Body size (IOTF classification)               
   Thinness Grade 3 0.2   0.1   0.3   0.3   0.2   0.1   0.4  
   Thinness Grade 2 0.8   0.5   0.7   0.6   0.7   0.7   0.6  
   Thinness Grade 1 4.5   5.0   3.7   4.5   4.1   4.5   4.2  
   Normal 74.9   76.1   76.0   74.7   77.4   75.6   76.5  
   Overweight 14.9   14.6   14.9   15.7   13.9   15.0   14.6  
   Obese 4.6   3.6   4.3   4.3   3.7   4.2   3.8  
Waist circumference (cm) 73.1 0.7 73.0 8.5 72.1 9.2 72.7 8.9 72.3 8.8 73.6 9.3 71.4 8.3
High waist circumference (Canada classification) 13.4   13.2   11.1   12.3   11.7   14.9   9.0  
Eating behaviour disorders (EAT-40)               
   Low risk (< 17.5/100) 81.3   81.2   82.3   81.4   82.2   82.1   81.5  
   Moderate risk (17.5/100 - 30/100) 9.9   9.8   10.1   9.9   9.9   9.2   10.7  
   High risk (≥ 30/100) 8.8   9.0   7.6   8.7   7.9   8.7   7.8  
Hospital Anxiety and Depression (HAD scale)               
High anxiety score (≥50/100) 23.3   23.8   24.3   24.4   23.7   22.5   25.7  
High depression score (≥50/100) 3.2   2.8   2.5   2.8   2.6   2.6   2.7  
Duke Health Profile               
Physical score (0-100) 75.4 0.5 75.1 18.9 75.6 18.5 75.3 18.6 75.5 18.7 76.1 18.6 74.6 18.7
Mental score (0-100) 64.4 0.6 64.8 23.4 63.9 23.3 64.0 23.6 64.7 23.1 65.1 23.1 63.5 23.6
Social score (0-100) 68.8 0.4 68.7 19.2 68.6 19.3 68.5 19.4 68.8 19.1 68.9 19.1 68.4 19.4
  1. ¶ Overall baseline characteristic parameters are estimated according to stratification and cluster design
  2. * Data are mean when SD is displayed or percentages
  3. ** Standard Error of the Mean
  4. ¥ Standard Deviation