Prenatal ultrasonography and Doppler sonography for the clinical investigation of isolated ventricular septal defects in a late second-trimester population

Table 3 Gender and gestational age specific prevalence of ventricular septal defects among screened subjects ( n = 2,661)

GA (weeks)	Male				Female				Total
GA (weeks)		Screened ( n)	VSD ( n)	Prevalence (%)	P value for trend test	Screened ( n)	VSD ( n)	Prevalence (%)	P value for trend test	Screened ( n)	VSD ( n)	Prevalence (%)	P value for trend test
19⁺⁰ to 19⁺⁶	34	0	0.00		48	4	8.33		82	4	4.87
20⁺⁰ to 20⁺⁶	182	11	6.04	0.04	170	7	4.12	0.38	352	18	5.11	0.06
21⁺⁰ to 21⁺⁶	338	24	7.10		284	11	3.87		622	35	5.63
22⁺⁰ to 22⁺⁶	382	20	5.23		340	17	5.00		722	37	5.12
23⁺⁰ to 23⁺⁶	263	7	2.66		270	15	5.56		533	22	4.13
24⁺⁰ to 24⁺⁶	182	5	2.74		168	3	1.79		350	8	2.29
Total	1,381	67	4.85		1,280	57	4.45		2,661	124	4.66

ISSN: 2047-783X