Table 2 Relationship between potential risk factors and childhood overweight/obesity

From: Relationship between short sleeping hours and childhood overweight/obesity: results from the ‘Québec en Forme’ Project

  Male children (n=211) Multivariate a Female children (n=211) Multivariate a Multivariate b
  Non-obese Obese/overweight OR (95% CI) Non-obese Obese/overweight OR (95% CI) OR (95% CI)
  (n=168) (n=43)   (n=161) (n=50)   
  n (%) n (%)   n (%) n (%)   
Parental obesity        
 BMI30 kg/m2 37 (22.0) 12 (27.9) 1.65 (1.32–1.98)* 33 (20.5) 24 (48.0) 2.86 (2.33–3.11)* 2.39 (2.09–2.71)*
Parental education        
 Lower level 35 (20.8) 10 (23.2) 1.27 (1.05–1.52)** 33 (20.5) 18 (36.0) 2.14 (1.79–2.39)* 1.69 (1.31–1.92)*
Total family income        
 <20 000$ 42 (25.0) 5 (11.6) 0.70 (0.57–0.97) 31 (19.3) 16 (32.0) 2.12 (1.81–2.41)* 1.41 (1.19–1.63)*
Single parenthood        
 Single 40 (23.8) 3 (7.0) 1.02 (0.89–1.28) 25 (15.5) 8 (16.0) 1.31 (1.12–1.46) 1.19 (1.05–1.41)
Breakfast        
 Rarely 1 (0.6) 0 (0.0) ND 0 (0.0) 0 (0.0) ND ND
Watching TV        
3 h a day 24 (14.3) 5 (11.6) 1.23 (0.91–1.52) 16 (9.9) 10 (20.0) 2.82 (2.53–3.05)* 2.08 (1.89–2.32)*
Playing videogames        
3 h a day 86 (51.2) 20 (46.5) 1.23 (0.95–1.43) 37 (23.0) 23 (46.0) 2.81 (2.55–3.01)* 2.22 (1.98–2.41)*
Computer utilization        
3 h a day 54 (32.1) 13 (30.2) 1.20 (1.02–1.48) 33 (20.5) 16 (32.0) 2.12 (1.85–2.37)* 1.68 (1.45–1.98)*
Physical activity        
 Never 155 (92.3) 35 (81.4) 1.10 (0.85–1.31) 120 (74.5) 39 (78.0) 1.81 (1.42–2.19)* 1.45 (1.25–1.61)*
Breastfed        
 Never 98 (58.3) 20 (46.5) 1.04 (0.78–1.19) 88 (54.7) 36 (72.0) 1.79 (1.58–1.97)* 1.42 (1.24–1.63)*
  1. Abbreviations: BMI, body mass index; OR, odds ratio; 95% CI, 95% confidence interval.
  2. aThe adjusted ORs calculated separately by sex. ORs were adjusted for age and parental obesity.
  3. bThe adjusted ORs for both sexes combined. ORs were adjusted for age, sex and parental obesity.
  4. *P<0.01.
  5. **P<0.05.