Table 2.
Results of logistic regression
| Estimate | Standard error | Wald χ2 | χ2 Probability | |
|---|---|---|---|---|
| Intercept | −1.93 | 1.85 | ||
| IL-1 | 5.80 | 1.79 | 10.44 | 0.001 |
| IL-6 | 0.69 | 0.63 | 1.20 | 0.274 |
| IL-1 × IL-6 | 0.59 | 0.28 | 4.52 | 0.033 |
| IL-10 | 1.33 | 0.97 | 1.88 | 0.170 |
| IL-1 × IL-10 | −5.81 | 1.80 | 10.41 | 0.001 |
| IL-6 × IL-10 | −0.22 | 0.68 | 0.11 | 0.744 |
| Maternal age | −0.03 | 0.06 | 0.21 | 0.649 |
| Maternal BMI | −0.10 | 0.05 | 3.63 | 0.057 |
| Infection during pregnancy | −0.12 | 0.48 | 0.06 | 0.801 |
| History of preterm birth | 1.37 | 0.71 | 3.79 | 0.052 |
| Gravida | −0.05 | 0.22 | 0.04 | 0.837 |
| Gestational age (days) at which the blood was drawn | 0.10 | 0.12 | 0.71 | 0.400 |
| Marital status | 0.60 | 0.50 | 1.44 | 0.231 |
| Preeclampsia | 0.93 | 0.68 | 1.90 | 0.168 |
Abbreviations: BMI, body mass index; IL-1, interleukin-1.