Table 1 Maternal characteristics of pregnant women who underwent NIPT
Maternal age (years) | Cases (%) |
|---|---|
< 30 | 17,449 (38.12%) |
30 ≤ year ≤ 34 | 11,403 (24.91%) |
35 ≤ year ≤ 39 | 14,353 (31.36%) |
> 39 | 2568 (5.61%) |
Gestational age at NIPT (weeks) | |
12–15 | 4853 (10.60%) |
16–19 | 33,066 (72.24%) |
20–23 | 6740 (14.72%) |
24–26 | 1037 (2.27%) |
> 26 | 77 (0.17%) |
Clinical features | |
Advanced maternal age (age ≥ 35 years) | 16,921 (36.97%) |
High or critical risk of serological screening | 19,820 (43.30%) |
Foetal soft markers by B-ultrasound | 503 (1.10%) |
Increased NT | 86 (0.19%) |
Missed other screening opportunities | 500 (1.09%) |
No clinical indications | 7943 (17.35%) |