Table 4 Perinatal features by specific chromosomal abnormalities
Features | T21 (n = 689) | T18 (n = 53) | T13 (n = 7) | Sex-related (n = 48) | Structural abnormality (n = 14) | Total (n = 811) |
|---|---|---|---|---|---|---|
Fatality (%) | 535(77.65) | 51(96.23) | 6(85.71) | 44(91.67) | 11(78.57) | 647(79.78) |
Stillbirths (≥20 weeks GA %) | 514(74.60) | 47(88.68) | 6(85.71) | 42(87.50) | 11(78.57) | 620(76.45) |
Multiple anomalies | 64(9.28) | 5(9.43) | 0 | 0 | 0 | 69(8.50) |
Congenital heart anomalies | 57(8.27) | 1(1.89) | 0 | 0 | 0 | 57(7.02) |