20 April 2022: Clinical Research
Effects of Interaction Between Gestational Hypertension and History of Preterm Birth on the Risk of Preterm Birth: An Analysis Based on the National Vital Statistics System Database
Xiaoqin Cao 1AE , Daoming Zu 2BCD , Yang Liu 1AE*DOI: 10.12659/MSM.935094
Med Sci Monit 2022; 28:e935094
Table 4 Logistic regression analyses of the influence of GH on preterm birth in the participants with HPB, and the influence of HPB on preterm birth in the participants with GH.
| Model 1 | Model 2 | Model 3 | ||||
|---|---|---|---|---|---|---|
| OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | |
| Non-HPB | ||||||
| GH | 2.726 (2.696–2.756) | 2.704 (2.674–2.735) | 2.663 (2.631–2.696) | |||
| HPB | ||||||
| GH | 1.884 (1.808–1.964) | 1.874 (1.798–1.953) | 1.933 (1.848–2.022) | |||
| GH | ||||||
| HPB | 2.436 (2.341–2.534) | 2.272 (2.183–2.365) | 2.301 (2.203–2.403) | |||
| Non-GH | ||||||
| HPB | 3.523 (3.467–3.581) | 3.272 (3.219–3.326) | 3.187 (3.132–3.244) | |||
| OR – odds ratio; CI – confidence interval; GH – gestational hypertension; HPB – history of preterm birth. univariate analysis; the variables including age, race, and educational attainment of mother and father were corrected; adjusted variables included age, race, and educational attainment regarding father and mother, pre-pregnancy BMI, weight gain during pregnancy, cigarette smoking before and during pregnancy, method of delivery, number of fetus, payment source for delivery, previous cesarean, pre-pregnancy diabetes, gestational diabetes, infection, eclampsia, sex of infant. | ||||||