TTTS | Controls | |
Number of pregnancies | 17 | 17 |
Gestation at diagnosis (weeks) | 21.8 (18–28) | N/A |
Gestation at delivery (weeks) | 28.7 (23–36) | 28.9 (23–36) |
Number of amnioreductions | 2.1 (1–4) | N/A |
Total volume of amniotic fluid drained (litres) | 4.4 (1.6–13.6) | N/A |
Intrauterine fetal death | 5 | 1 |
Neonatal death | 6 | 5 |
Surviving twins | 23 (68) | 28 (82) |
Pregnancies with both twins | 10 (59) | 13 (76) |
Pregnancies with one twin | 3 (18) | 2 (12) |
Pregnancies with neither twin | 4 (24) | 2 (12) |
Values are number, number (%), or mean (range).
N/A, not applicable.