Table 2.

Multivariate logistic regression analysis for the association between vaccination with the third Covid-19 booster dose and composite maternal outcomes (adjusted odds ratio)

	p value	aOR	95% CI
Comparison with women who received two doses of the vaccine
Parity	< 0.01	0.76	0.68	0.85
Oxytocin augmentation of labor	0.13	1.38	0.91	2.08
Induction of labor	0.25	1.39	0.79	2.43
Epidural analgesia	0.34	1.21	0.82	1.80
Third Covid-19 booster dose vs. two doses	0.47	0.89	0.65	1.22
Previous miscarriages	0.69	0.96	0.78	1.17
Maternal age, years	0.93	1.00	0.96	1.03
Comparison with unvaccinated women
Parity	< 0.01	0.73	0.68	0.81
Oxytocin augmentation of labor	0.03	1.58	1.04	2.40
Third Covid-19 booster dose vs. none	0.08	0.73	0.52	1.03
Induction of labor	0.15	1.60	0.85	3.04
Maternal age, years	0.31	1.02	0.98	1.06
Previous miscarriages	0.36	1.09	0.90	1.32
Epidural analgesia	0.79	1.05	0.71	1.57

CI confidence interval, aOR adjusted odds ratio