The impact of gestational weeks of Coronavirus disease 2019 (COVID-19) infection on perinatal outcomes

Table 4 Multivariate logistic regression analysis of the association between gestational age at COVID-19 infection and perinatal outcomes

Variables	β	SE	Waldχ²	P	OR	95% CI
GDM (n, %)	− 0.041	0.018	5.056	0.025	0.960	0.927–0.995
Pre-eclampsia (n, %)	− 0.046	0.022	4.549	0.033	0.955	0.916–0.996
PROM (n, %)	0.009	0.018	0.271	0.603	1.009	0.975–1.045
Vaginal delivery (n, %)	0.018	0.016	1.302	0.254	1.018	0.987–1.050
Premature birth (n, %)	− 0.009	0.084	0.012	0.913	0.991	0.841–1.168
Asphyxia (n, %)	− 0.071	0.093	0.573	0.449	0.932	0.776–1.119
NICU admission (n, %)	− 0.058	0.032	3.223	0.073	0.994	0.885–1.005
SGA (n, %)	− 0.005	0.026	0.030	0.863	0.995	0.946–1.048

GDM: gestational diabetes mellitus; PROM: Premature rupture of membranes; NICU: neonatal intensive care unit; SGA: small for gestational age; SE: standard error; OR: odds ratio; CI: confidence interval; P < 0.05, were considered statistically significant

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