Table 4. Regression coefficients, odds ratios, and 95% confidence intervals of the final combined model for predicting positive AF culture among 75 women with preterm premature rupture of membranes.
| Predictor | Beta-coefficient | SE | OR (95% CI) | p-value |
|---|---|---|---|---|
| Invasive model | ||||
| High AF IL-6 level (> 1488.7 pg/mL) | 2.067 | 0.928 | 7.903 (1.282–48.707) | 0.026 |
| High AF IL-8 level (> 988.46 pg/mL) |
1.790 | 0.907 | 5.987 (1.011–35.446) | 0.049 |
| Constant | -2.335 | 0.553 | 0.097 | < 0.001 |
| Non-invasive model | ||||
| Earlier GA at sampling (≤ 31.4 weeks) | 2.132 | 0.637 | 8.430 (2.417–29.399) | 0.001 |
| High CVF IL-6 level (> 310.79 pg/mL) |
2.245 | 0.629 | 9.443 (2.750–32.425) | <0.001 |
| Constant | -2.528 | 0.633 | 0.080 | < 0.001 |
SE, standard error; OR, odds ratio; CI, confidence interval; AF, amniotic fluid; IL, interleukin; GA, gestational age; CVF, cervicovaginal fluid