Table 3 Associations between overweight and obesity category in urban and rural children at age 8 years and rapid weight gain from 1 to 5 years

QICC

1425.13

1387.70

1245.26

322.91

321.24

305.24

303.31

Intercept

0.498

0.425

0.377

0.160

0.141

0.081

0.081

Weight gain >0.67 SD from 1 to 5 years

3.20 (<0.001)^b

2.40 (<0.001)

2.08 (0.001)

1.99 (0.017)

2.01 (0.018)

Sex female

0.64 (0.001)

BMI of the mother

1.54 (<0.001)

1.65 (<0.001)

1.63 (<0.001)

Height for age (child) (aged 8 years)

1.80 (<0.001)

Birth weight

1.11 (0.026)

0.96 (0.761)

 Further education

1.95 (0.018)

0.86 (0.865)

0.86 (0.869)

 Completed secondary school

1.32 (0.403)

1.07 (0.876)

1.04 (0.938)

 Incomplete secondary school

1.19 (0.546)

0.46 (0.058)

0.45 (0.062)

 Completed primary school

0.85 (0.450)

0.30 (0.007)

0.29 (0.006)

Number of days of active exercise (aged 8 years)

 > 1 per week (frequent)

 ≥ 1 per 2 weeks (less frequent)

 > 1 per week (frequent)

4.34 (<0.001)

4.31 (<0.001)

 ≥ 1 per 2 weeks (less frequent)

2.94 (<0.001)

2.92 (<0.001)