Table 3 Effect of parent’s socio-economic and girl’s nutritional status on age at menarche of school girls (age, 10–12 years)

Underweight

0.069(0.023–0.210)**

0.279 (0.075–0.986)*

 Normal weight

0.122(0.045–0.325)**

0.248 (0.082–0.755)*

 Over weight

0.506(0.166–1.543)

0.594(0.169–2.085)

 Obesity^R

1.00

 Housewife

0.342(0.195–0.597)**

0.753(0.320–1.773)

 Survice^R

1.00

 Service

5.480(2.902–10.350)**

1.396(0.402–4.843)

 Business

1.953(1.005–3.797)**

1.281(0.457–3.595)

 Farmer^R

 ≤ 20,000 (Taka)

0.315(0.208–0.477)**

1.499(0.893–2.680)

 > 20,000 (Taka)^R

 Uneducated

0.396(0.129–1.219)

0.872(0.116–6.569)

 Primary

0.308(0.162–0.586)**

0.829(0.232–2.964)

 Secondary

0.382(0.228–0.639)**

0.889(0.360–2.197)

 Higher^R

 Uneducated

0.505(0.186–1.369)

4.698(1.844–7.200)

 Primary

0.285(0.149–0.544)**

3.125(1.632–5.451)

 Secondary

0.288(0.158–0.526)**

2.030(0.560–7.362)

 Higher^R

 Normal

0.623(0.413–0.939)*

1.142(0.645–2.023)

 Cesarean^R

 Rural

0.063(0.037–0.108)**

0.012(0.003–0.047)**

 Urban^R

Negelkerke R²-value

0.502

Goodness of fit

Hosmer and Lemeshow test

Chi-square value = 3.005ⁿ