Ville et al.
1998
n=132
Hecher et al.
1999
n=73
Hecher et al.
2000
n=200
Quintero et al.
2003
n=95
Senat et al.
2004
n=72
Huber et al.
2006
n=200
Middledorp et al.
2007
n=100
Cincotta et al.
2009
n=100
Chmait et al.
2011
n=682
Present study
2012
n=171
Median gestational age at delivery (weeks) - 33 34 32 33 34 33 31 33 33
Perinatal survival (%) 55 61 - 64 56 72 70 76 79 78
Neurological sequels (%) 4 6 6 4 7 - - 3   5
2 survivors (%) 36 42 50 44 36 60 58 66 72 64
1 survivor
(%)
38 37 30 38 38 24 23 19 18 29
0 survivor (%) 26 21 20 17 26 17 19 15 10 7
At least 1 survivor 74 79 80 82 74 84 81 85 90 93
Table 4: Comparison of perinatal outcomes in published series.