| 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).