Table 7.

Distribution of gestational weeks for infants in whom congenital heart block was detected in utero.

Gestational week	n (%)
16	2 (1.1)
17	2 (1.1)
18	10 (5.3)
19	9 (4.8)
20	27 (14.4)
21	13 (6.9)
22	28 (14.9)
23	16 (8.5)
24	18 (9.6)
25	7 (3.7)
26	9 (4.8)
27	6 (3.2)
28	11 (5.9)
29	8 (4.3)
30	5 (2.7)
32	8 (4.3)
33	1 (0.5)
34	3 (1.6)
37	2 (1.1)
38	2 (1.1)
39	1 (0.5)
<18th week	4 (2.1)
18–26th week	137 (72.8)
27–34th week	42 (22.3)
>34th week	5 (2.7)
Total	188 (100)