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N (%)
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|---|
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Uncomplicated monochorionic diamniotic twin pregnancy, delivered > 34 weeks gestation
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55/177 (31.07)
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Fetal composite*
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94/177 (53.11)
|
|
Twin-twin transfusion syndrome
|
23/177 (12.99)
|
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Antenatal growth restriction
|
41/177 (23.16)
|
|
Antenatal growth restriction (per fetus)
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73/354 (20.6)
|
|
Postnatal growth restriction
|
43/177 (24.29)
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|
Postnatal growth restriction (per baby)
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54/354 (15.25)
|
|
Intrauterine fetal death (single)
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11/177 (6.21)
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Intrauterine fetal death (double)
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12/177 (6.78)
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Maternal antenatal and postnatal composite **
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46/177 (25.99)
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|
Spontaneous preterm birth at 24–34 weeks
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12/177 (6.78)
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Neonatal composite **
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91/340 (26.76)
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- *Fetal composite included at least one of the following: twin-twin transfusion syndrome, antenatally detected growth restriction, postnatally detected growth restriction, twin anaemia polycythaemia sequence, or intrauterine fetal death
- **see Additional file 1 for full definitions of these composites
