Table 5 Logistic regression analyses for specific outcomes.
Parameter | B | Standard error | Wald | df | p | Exp(B) |
|---|---|---|---|---|---|---|
PTB < 37 weeks of gestation | ||||||
BMI (kg/m2) | 0.009534974 | 0.004472903 | 4.544226151 | 1 | 0.0330299 | 1.009580576 |
History of preterm birth | − 1.928875978 | 0.627047451 | 9.46254146 | 1 | 0.0020971 | 0.14531144 |
Constant | − 2.74283187 | 0.453585491 | 36.5662199 | 1 | 1.476E-09 | 0.064387751 |
R2 = 7.3% | ||||||
PTB < 35 weeks of gestation | ||||||
PAPP-A MoM (IU/L) | − 1.82891807 | 0.94748585 | 3.726001589 | 1 | 0.0535715 | 0.160587218 |
BMI (kg/m2) | 0.015952975 | 0.005715892 | 7.789602036 | 1 | 0.0052548 | 1.016080903 |
Constant | 0.329589273 | 1.621064984 | 0.041337603 | 1 | 0.8388877 | 1.390396937 |
R2 = 9.2% | ||||||
Spontaneus PTB < 37 weeks of gestation | ||||||
History of preterm birth | 1.57170964 | 0.804428386 | 3.817419251 | 1 | 0.0487223 | 4.814872858 |
R2 = 4.2% | ||||||
Spontaneus PTB < 35 weeks of gestation | ||||||
fbHCG | − 0.072580085 | 0.02682553 | 7.320459131 | 1 | 0.0068174 | 0.929991266 |
fbHCG MoM | 1.593878529 | 0.62691655 | 6.463845549 | 1 | 0.0110091 | 4.922805194 |
Constant | − 2.542950459 | 1.800319911 | 1.995154029 | 1 | 0.157803 | 0.078634051 |
R2 = 7.7% | ||||||
