Epidemiology of Birth Defects in Eastern China and the Associated Risk Factors

17 January 2022 : Clinical Research

Qiao-Qiao Wang^1BEG*, Cha-Ying He^2AC, Jin Mei^3ADF, Yi-Lin Xu^4BC

DOI: 10.12659/MSM.933782

Med Sci Monit 2022; 28:e933782

Background Material and Methods Results Discussion Conclusions References

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Table 1 Clinical characteristics of enrolled infants.

Variables		n	(%)
Number of fetuses	Single	4105	94.3
	Twins	225	5.2
	Multifetal	10	0.2
	Not available	9	0.3
Sex	Male	2271	52.2
	Female	1795	41.3
	Unknown	282	6.5
Diagnostic method	Clinical diagnosis after birth	1674	38.5
	Prenatal ultrasound diagnosis	2836	65.2
	Autopsy	30	0.7
	Chromosome diagnosis	115	2.6
Clinical outcomes	Live birth	2477	57.0
	Dead fetus	1806	41.5
	Stillbirth	11	0.3
	Death within 7 days	55	1.3

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