Table 5.
Ordinal logistic regression by number of RBCD and growth (reference: No risk behaviors)
| Variables | Items | Model 1 | Model 2 | Model 3 | Model 4 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | P | OR | 95% CI | P | OR | 95% CI | P | OR | 95% CI | P | ||
| Age | Continuous | 1.49 | 1.33, 1.66 | 0.000 | 1.21 | 1.08, 1.37 | 0.002 | 1.30 | 1.16, 1.46 | 0.000 | 1.18 | 1.05, 1.34 | 0.006 |
| Gender | Girls (reference: Boys) | 0.65 | 0.51, 0.83 | 0.001 | 0.60 | 0.47, 0.77 | 0.000 | 0.64 | 0.50, 0.83 | 0.001 | 0.61 | 0.47, 0.78 | 0.000 |
| School location | Urban | 0.61 | 0.43, 0.86 | 0.005 | 0.69 | 0.48, 0.99 | 0.042 | ||||||
| Inner suburb (reference: Outer suburb) | 0.54 | 0.39, 0.73 | 0.000 | 0.59 | 0.43, 0.81 | 0.001 | |||||||
| School type | Private (reference: Public) | 6.48 | 4.66, 9.01 | 0.000 | 5.36 | 3.72, 7.73 | 0.000 | ||||||
| Household registration | Migrants (reference: Residents) | 1.98 | 1.46, 2.69 | 0.000 | 1.19 | 0.85, 1.66 | 0.305 | ||||||
| Guardians’ education level | High school and above (reference: Middle school and below) | 0.68 | 0.49, 0.94 | 0.021 | 0.71 | 0.51, 0.99 | 0.046 | ||||||
| No. of household appliances | More than 4 (reference: No more than 3) | 0.51 | 0.39, 0.66 | 0.000 | 0.78 | 0.59, 1.05 | 0.098 | ||||||
| Test of parallel lines (P) | 0.438 | 0.141 | 0.183 | 0.156 | |||||||||
| Model fitting (−2 LL, P) | 169.6, 0.000 | 465.6, 0.000 | 527.2, 0.000 | 958.4, 0.000 | |||||||||
| Goodness of fit (Pearson’s χ2, P) | 45.0, 0.173 | 174.0, 0.320 | 222.7, 0.380 | 578.4, 0.877 | |||||||||
| Pseudo R2 Cox and Snell | 0.069 | 0.224 | 0.145 | 0.232 | |||||||||
OR: Odds ratio; CI: Confidence interval; RBCD: Risk behaviors for chronic diseases; −2 LL: −2 log likelihood.