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Independent familial risk factors for developmental speech delay in children according to the multivariable logistic regression analysis.
| Item | Odd ratio (95% CI) | P value |
|---|---|---|
| Maternal age at child’s birth | 1.312 (1.192–1.444) | < 0.001 |
| Paternal personality | 0.023 (0.011–0.048) | < 0.001 |
| Average education level | 2.771 (1.226–6.263) | 0.014 |
| Monthly family income | 4.447 (1.934–10.222) | < 0.001 |
| Parent–child communication | 6.445 (3.441–12.072) | < 0.001 |
