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Table 2 Risk factors associated with overweight and obesity among school children in Dhaka, Bangladesh 2007

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

Risk factor Control Case Odds ratio (95% CI)
  n (%) n (%) Unadjusted Adjusted
Having at least one overweight parent
  No 66 (68) 43 (44) reference reference
  Yes 31 (32) 54 (56) 2.7 (1.5–4.8)* 2.8 (1.5–5.2)*
Total physical activities per day
  <60 minutes 64 (65) 69 (70) reference Not included
  ≥60 minutes 35 (35) 30 (30) 0.80 (0.4–1.4)  
Physical activities at home per day
  No 13 (13) 27 (27) reference reference
  <30 minutes 28 (28) 27 (27) 0.5 (0.2–1.1)§ 0.4 (0.2–1.0)§
  ≥30 minutes 58 (59) 45 (45) 0.4 (0.2–0.8)* 0.4 (0.2–0.9)*
Physical activities at school per day
  No 40 (40) 43 (43) reference  
  <30 minutes 26 (26) 22 (22) 0.8 (0.4–1.6) Not included
  ≥30 minutes 33 (33) 34 (34) 0.9 (0.5–1.8)  
Sedentary activities
  0–4 hours 59 (60) 41 (40) reference reference
  > 4 hours 40 (40) 58 (59) 2.1 (1.2–3.7)* 2.0 (1.1–3.7)*
Sex
  Female 47 (47) 44 (44) reference Not included
  Male 52 (52) 55 (56) 1.1 (0.6–2.0)  
Maternal education
  Up to higher secondary 35 (37) 34 (35) reference Not included
  Graduation or more 60 (61) 64 (65) 1.1 (0.6–2.0)  
Sleeping time 99 (100) 99 (100) 0.8 (0.6–101) Not included
Monthly household expenditure 99 (100) 99 (100) 1.0 (1.0–1.0) Not included
  1. *p < 0.05; § p > 0.05; p > 0.3.
  2. This group included 5 controls and 13 cases who reported no physical activity.