. 2021 Oct 31;156(3):459–465. doi: 10.1002/ijgo.13989

TABLE 1.

Risk for stillbirth and preterm birth in Austria during the pandemic period (March to December 2020) in comparison with the same time period of the preceding years

	Events (per 1000 births)				Odds ratio (95% confidence interval)
	Pre‐COVID‐19		COVID‐19		Odds ratio (95% confidence interval)
	Births in March to December 2015–2019		Births in March to December 2020		Unadjusted	P value	Adjusted	P value
	(n = 347 363)		(n = 65 660)
	n	‰	n	‰
Stillbirth	866	2.49	171	2.60	1.04 (0.89–1.23)	0.601	1.03 (0.86–1.23) ^a	0.751
Stillbirth	866	2.49	171	2.60	1.04 (0.89–1.23)	0.601	1.05 (0.87–1.26) ^b	0.644
Preterm birth (<37⁺⁰ weeks)	21 196	61.02	3695	56.27	0.93 (0.90–0.96)	<0.001
Extremely preterm (<28⁺⁰ weeks)	936	44.16	173	46.82
Very preterm (28⁺⁰ to 31⁺⁶ weeks)	1912	90.21	336	90.93
Moderately preterm (32⁺⁰ to 36⁺⁶ weeks)	18 348	865.64	3186	862.25

^{^a}

Adjusted for maternal age, parity, body mass index.

^{^b}

Adjusted for maternal age, parity, body mass index, and smoking status.