Table 2 Pregnancy outcomes among people with any laboratory evidence and a subset with nucleic acid amplification test (NAAT)-confirmed Zika virus infection - U.S. Zika Pregnancy and Infant Registry, U.S. States and DC.
From: Outcomes up to age 36 months after congenital Zika virus infection—U.S. states
Total n (%) N = 2374 | NAAT-confirmed n (%) N = 423 | |
|---|---|---|
Pregnancy outcome | 2374 | 423 |
Live births | 2248 (94.7) | 371 (87.7) |
Pregnancy loss | ||
<20 weeks’ gestation | 96 (4.0) | 39 (9.2) |
≥20 weeks’ gestation | 30 (1.3) | 12 (2.8) |
Gestational age of outcomea | 2213 | 364 |
Term (≥37 weeks) | 1987 (89.7) | 325 (89.3) |
Preterm (<37 weeks) | 226 (10.2) | 39 (10.7) |
Missing | 35 (1.6) | 7 (1.9) |
Small-for-gestational agea,b | 2139 | 354 |
Overall | 237 (11.1) | 61 (17.2) |
Birth defectsa | 2248 | 371 |
Any Zika-associated birth defectsc | 122 (5.4) | 38 (10.0) |
Any eye abnormalities | 28 (1.2) | 10 (2.6) |
Eye abnormalities only (without brain abnormalities and/or microcephaly) | 10 (0.4) | 1 (0.3) |
Any brain abnormalities and/or microcephaly with or without eye abnormalities | 112 (4.9) | 37 (9.9) |
Brain abnormalities and/or microcephaly without eye abnormalities | 94 (4.2) | 28 (7.5) |
Microcephaly only without reported brain or eye abnormalitiesd | 47 (2.1) | 11 (2.9) |
Microcephaly only without reported brain or eye abnormalities & small-for-gestational agee | 33 (70.2) | 9 (81.8) |
Brain abnormalities without microcephaly or eye abnormalities | 19 (0.8) | 4 (1.1) |
Brain and/or microcephaly and eye abnormalities | 18 (0.8) | 9 (2.4) |
Infant and child deathf | 1638 | 289 |
Overall | 20 (1.2) | 5 (1.7) |
Neonatal (<28 days) | 12 (60) | 4 (80) |
Postneonatal infant (≥28 days to 364 days) | 6 (30) | 0 (0) |
Child (≥1 year) | 2 (10) | 1 (20) |
