Clinical Study
PP13 and PAPP-A in the First and Second Trimesters: Predictive Factors for Preeclampsia?
Table 6
Results of logistic regression analysis for two markers of preeclampsia in two time sessions, first and second trimesters (4 variables in sum).
| Model | Constant | PAPPA coefficient (95% CI) | PP13 coefficient (95% CI) | PAPPA coefficient (95% CI) | PP13 coefficient (95% CI) | Chi-square ( value) |
| Four variables Simultaneously | 24.534 | −0.979 (−1.578–0.380) | −0.087 (−0.131–0.043) | −0.064 (−0.107–0.020) | −0.026 (−0.037–0.015) | 178.04 (<0.0001) |
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