Table 1 Distributions of maternal age and gestational age of pregnant women who underwent NIPT on two NGS platforms
From: Non-invasive prenatal testing to detect chromosome aneuploidies in 57,204 pregnancies
Illumina | Proton | |
|---|---|---|
MA (years) | ||
Median | 30.0 | 30.0 |
Mean ± SD | 30.1 ± 5.0 | 30.4 ± 5.0 |
Min-Max | 16–50 | 15–49 |
AA (≥35) | 8265 (22.1%) | 5021 (25.3%) |
AA with positive NIPT | 158 (1.9%) | 88 (1.8%) |
GA (weeks) | ||
Median | 18.0 | 17.0 |
Mean ± SD | 17.7 ± 2.0 | 17.6 ± 2.1 |
Min-Max | 11–30 | 11–30 |
Twin pregnancies | 207 (0.6%) | 218 (1.1%) |
IVF-ET pregnancies | 457 (1.2%) | 429 (2.2%) |