Table 2 Association between obesity or overweight (obesity/overweight vs. normal/underweight) and age at menarche, using multivariate logistic regression

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