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Table 1 Demographic characteristics of study participants at seven selected schools in Dhaka, Bangladesh 2007

From: Risk factors associated with overweight and obesity among urban school children and adolescents in Bangladesh: a case–control study

Characteristics Control Case p value
  N = 99 N = 99  
Age in years, mean (SD) 13.2 (0.1) 13.1 (0.1) >0.05*
Male sex, n (%) 52 (53) 55 (56) >0.05***
Participant’s class, n (%)    
  Five 8 (8) 8 (8) >0.05***
  Six 16 (16) 16 (16) >0.05***
  Seven 27 (27) 24 (24) >0.05***
  Eight 27 (27) 29 (29) >0.05***
  Nine 20 (20) 21 (21) >0.05***
  Ten 1 (1) 1 (1) >0.05***
Birth weight in kg, mean (SD) 3.2 (0.7) 3.0 (0.8) >0.05*
Sleeping time/day, mean ((SD) 7.7 (1.0) 7.4 (1.0) >0.05*
BMI, mean (SD) 18.5 (2.4) 28.8 (3.6) <0.01*
Monthly family expenditure in US$, median (IQR) 522 (373–597) 522 (448–746) >0.1**
At least one overweight parent§, n (%) 31 (32) 54 (56) <0.00***
Maternal education    
  Up to higher secondary, n (%) 35 (35) 34 (34) >0.05***
  Graduation degree and more, n (%) 60 (61) 64 (65) >0.05***
  1. *t-test; ** Wilcoxon-rank sum test; *** Z-test.
  2. § BMI of parents were assessed using self reported height (m) and weight (kg) of parents. BMI > 24.9 was considered as overweight.