Table 2.
Results of binary logistic regression analysis.
| Predictive variables | p-value | OR (95% CI) |
|---|---|---|
| Gender | ||
| Male | Ref | |
| Female | <0.01 | 0.75 (0.62, 0.9) |
| Age (months) | ||
| 1–12 | Ref | |
| 13–24 | <0.01 | 1.57 (1.23, 1.99) |
| 25–36 | <0.01 | 2.59 (1.99, 3.39) |
| Health status | ||
| Health | Ref | |
| Illness | <0.01 | 1.99 (1.43, 2.76) |
| Father's age | ||
| <35 | Ref | |
| ≥35 | 0.022 | 1.34 (1.01, 1.78) |
| Whether the health is abnormal during pregnancy | ||
| Yes | Ref | |
| No | 0.82 | 1.2 (0.98, 1.48) |
| Bacterial vaginitis | ||
| No | Ref | |
| Yes | 0.14 | 1.6 (0.85, 3.02) |
| Birth order | ||
| First-born child | Ref | |
| Non-first-born child | 0.07 | 0.84 (0.7, 1.02) |
| Delivery method | ||
| Eutocia | Ref | |
| Cesarean | 0.04 | 0.81 (0.67, 0.99) |
| Others | 0.13 | 1.43 (0.9, 2.29) |
| Whether colostrum is consumed | ||
| No | Ref | |
| Yes | 0.87 | 0.98 (0.75, 1.27) |
| Whether complementary foods is added | ||
| No | Ref | |
| Yes | 0.30 | 0.83 (0.59, 1.18) |
| Feeding patterns | ||
| Breast feeding | Ref | |
| Mixed feeding | <0.01 | 1.67 (1.38, 2.04) |
| Bottle-feeding | <0.01 | 1.65 (1.22, 2.24) |
| Average parent-child reading time per day | ||
| Less than 5 min | Ref | |
| 5–15 min | <0.01 | 0.57 (0.54, 0.83) |
| 16–30 min | <0.01 | 0.57 (0.46, 0.80) |
| More than 30 min | <0.01 | 0.49 (0.35, 0.72) |
| Average interaction time per day with other children | ||
| Less than 15 min | Ref | |
| 15–30 min | 0.043 | 0.73 (0.54, 0.99) |
| 31–60 min | 0.014 | 0.68 (0.50, 0.93) |
| More than 60 min | <0.01 | 0.48 (0.36, 0.65) |
| Average outdoor time per day | ||
| Less than 30 min | Ref | |
| 30–60 min | 0.373 | 0.88 (0.65, 1.17) |
| 61–90 min | 0.247 | 0.83 (0.61, 1.14) |
| 91–120 min | 0.794 | 1.05 (0.75, 1.46) |
| More than 120 min | 0.178 | 0.78 (0.55, 1.12) |
OR, odds ratio; CI, confidence interval.