TABLE 3.

Correlation of age with high risk for T21, T18, and T13.

Maternal age (Year)	Low risk	High risk for T21, T18, and T13
21–25	13(6.5%)	1(0.5%)
26–30	30(15%)	1(0.5%)
31–35	41(20.5%)	3(1.5%)
36–40	64(32%)	6(3%)
More than 40	39(19.5%)	2 (1%)
Total	187 (93.5%)	13 (6.5%)

The bold values is to highlight total number of the cases.