Table 1 First prenatal test, time of diagnosis and pregnancy outcome according to year of birth in cases with a common trisomy (T21, T18, T13)
Year of birth | ||||||||
|---|---|---|---|---|---|---|---|---|
2005–2006 | 2007–2009 | 2010–2012 | Total | |||||
First prenatal test* | ||||||||
PNS1 | 47 | 37% | 72 | 39% | 87 | 46% | 206 | 41% |
PNS2 | 4 | 3% | 52 | 28% | 57 | 30% | 113 | 22% |
PND | 29 | 23% | 23 | 12% | 14 | 7% | 66 | 13% |
No PNS or PND | 48 | 38% | 40 | 21% | 30 | 16% | 118 | 23% |
Time of diagnosis** | ||||||||
Postnatally | 52 | 41% | 79 | 42% | 71 | 38% | 202 | 40% |
Prenatally < 24 weeks | 64 | 50% | 104 | 56% | 108 | 57% | 276 | 55% |
Prenatally > = 24 weeks | 12 | 9% | 4 | 2% | 9 | 5% | 25 | 5% |
Pregnancy outcome*** | ||||||||
Live birth | 55 | 43% | 79 | 42% | 76 | 40% | 210 | 42% |
Fetal death | 14 | 11% | 15 | 8% | 24 | 13% | 53 | 11% |
TOP | 59 | 46% | 93 | 50% | 88 | 47% | 240 | 48% |