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Table 4 Odds ratios of children’s obesity and overweight in their mothers’ working hours per week stratified by age, gender

From: Mothers’ Working Hours and Children’s Obesity: Data from the Korean National Health and Nutrition Examination Survey, 2008–2010

Childrens’ Mothers’ working hours Obese odds ratio (95% CI)§ Overweight and obese odds ratio (95% CI)§
Age Gender Crude OR Adjusted OR† Crude OR Adjusted OR†
6-12 Male < 40 1.25 (0.51-3.05) 1.40 (0.54-3.64) 0.81 (0.48-1.36) 0.73 (0.40-1.33)
40 ~ 48 1 1 1 1
49 ~ 60 1.50 (0.42-5.40) 1.59 (0.44-5.74) 0.97 (0.44-2.16) 0.94 (0.39-2.27)
> 60 0.68 (0.15-2.99) 0.37 (0.06-2.35) 0.41 (0.15-1.10) 0.24 (0.06-0.89)
Female < 40 1.42 (0.54-3.70) 1.51 (0.51-4.41) 1.42 (0.77-2.62) 1.14 (0.57-2.30)
40 ~ 48 1 1 1 1
49 ~ 60 3.65 (1.09-12.22) 3.40 (0.86-13.54) 2.26 (1.06-4.85) 2.51 (1.03-6.10)
> 60 3.17 (0.75-13.37) 3.24 (0.63-16.82) 1.38 (0.52-3.67) 1.35 (0.43-4.28)
13-18 Male < 40 2.89 (1.36-6.15) 4.23 (1.79-10.00) 2.62 (1.31-5.25) 3.83 (1.76-8.31)
40 ~ 48 1 1 1 1
49 ~ 60 0.99 (0.40-2.45) 1.15 (0.42-3.11) 0.97 (0.44-2.14) 1.14 (0.48-2.72)
> 60 2.34 (0.97-5.66) 2.39 (0.90-6.39) 2.10 (0.92-4.78) 2.09 (0.82-5.32)
Female < 40 1.97 (0.65-5.94) 2.20 (0.73-6.65) 1.89 (0.80-4.47) 2.02 (0.84-4.89)
40 ~ 48 1 1 1 1
49 ~ 60 1.62 (0.57-4.57) 1.22 (0.36-4.22) 1.69 (0.67-4.29) 1.35 (0.47-3.92)
> 60 1.87 (0.64-5.50) 1.90 (0.65-5.52) 2.30 (0.94-5.65) 2.62 (1.04-6.62)
  1. § confidence interval (CI).
  2. † adjusted with children’s age, household income and mothers’ education, mothers’ BMI, occupational classification and shift work.