Table 2

Association between obesity or overweight (obesity/overweight vs. normal/underweight) and age at menarche, using multivariate logistic regression
Odds ratio (95%CI)
Age at menarche Model 1 Model 2 Model 3 Model 4
Less than 12 years Ref. Ref. Ref. Ref.
12 to less than 13 years 0.72 (0.54-0.96) 0.71 (0.53-0.96) 0.73 (0.54-0.99) 0.71 (0.52-0.97)
13 years or above 0.64 (0.48-0.84) 0.64 (0.49-0.85) 0.67 (0.50-0.88) 0.65 (0.49-0.87)
P-value 0.005 0.006 <0.001 0.012

Model 1: unadjusted. Model 2 adjusted for Group 1 (i.e. area of residence, living with both parents vs. single parent or a relative). Model 3: adjusted for Group 1 and Group 2 (i.e. presence of disease condition that limits physical activity, amount of running/jogging over the past year, number of hours spent reading/doing homework during weekdays). Model 4: adjusted for Group 1, Group 2 and Group 3 (frequency of dinners prepared away from home, frequency of fast-food intake, frequency of eggs intake, number of servings per day (divided into tertiles) of pasta and rice, number of servings per day of salty snacks and sweets).

Al-Awadhi et al.

Al-Awadhi et al. BMC Public Health 2013 13:29   doi:10.1186/1471-2458-13-29

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