Table 6. Multivariate unconditional logistic regression analysis of risk factors for congenital heart disease.
| Pattern | β-value | S.E. | Wald | df | P | OR | 95% CI |
|---|---|---|---|---|---|---|---|
| Ethnicity | 32.26 | 3 | 0.000 | ||||
| Han | 1 | ||||||
| Uygur | 0.70 | 0.33 | 4.67 | 1 | 0.031 | 2.02 | 1.07–3.83 |
| Kazak | 0.65 | 0.49 | 1.79 | 1 | 0.181 | 1.92 | 0.74–5.02 |
| Hui | 2.19 | 0.42 | 27.37 | 1 | 0.000 | 8.92 | 3.93–20.26 |
| History of abortion | 1.70 | 0.21 | 66.42 | 1 | 0.000 | 5.46 | 3.63–8.21 |
| Consanguinity | 1.70 | 0.36 | 21.90 | 1 | 0.000 | 5.50 | 2.69–11.23 |
| Premature birth | 2.25 | 0.18 | 164.27 | 1 | 0.000 | 9.45 | 6.70–13.31 |
| Catching a cold | 0.52 | 0.23 | 5.34 | 1 | 0.021 | 1.68 | 1.08–2.62 |
| Febrile illness | 1.83 | 0.54 | 11.63 | 1 | 0.001 | 6.23 | 2.18–17.82 |
| Antibiotic prescription | 1.31 | 0.66 | 3.94 | 1 | 0.047 | 3.71 | 1.02–13.58 |
| constant | -6.92 | 0.53 | 173.79 | 1 | 0.000 | 0.001 |