TABLE 3. Newborn Characteristics.
| West Nile virus illness N = 28 |
Uninfected women N = 25 |
p-Value | |
|---|---|---|---|
| Presence of umbilical cord blood WNV antibodya | |||
| IgM negative | 28 | - | |
| IgG negative | - | 25 | |
| Gestational age at birth, weeks (mean ± SD) | 38.6 ± 1.9 | 38.6 ± 1.1 | 0.924 |
| Preterm birth | 1 | 0 | 1.000 |
| Live birth | 28 | 25 | 1.000 |
| Neonatal death | 1 | 0 | 1.000 |
| APGARb median (range) | |||
| 1 min | 8 (3 – 9) | 9 (4–9) | 0.377 |
| 5 min | 9 (8 –10) | 9 (7–9) | 0.472 |
| Birth weight,b gm (mean ± SD) | 3384 ± 374 | 3501 (± 515) | 0.365 |
| Birth length, cm (mean ± SD) | 50.5 ± 3.1 | 50.1 ± 2.4 | 0.620 |
| Birth head circumference, cm (mean ± SD) | 34.3 ± 1.2 | 34.4 ± 2.0 | 0.982 |
| Small for gestational ageb | 0 | 0 | 1.000 |
| Respiratory distress | 2 | 2 | 1.000 |
| Signs of infection at birthc | 0 | 1 | 0.481 |
| Hearing test passedd | 26 | 23 | 1.000 |
| Birth defects-majore | 1 (pyloric stenosis) | 0 | 0.481 |
| Birth defects-minor | 1 (umbilical hernia) | 1 (patent foramen ovale) | 1.000 |
a
Newborns from WNV illness mothers not tested for IgG; newborns from uninfected mothers not tested for IgM.
b
A preterm birth with neonatal death not included; two missing WNV group birth weight entries.
c
Includes sepsis, pneumonia, seizures, skin rash, thrombocytopenia, cataracts.
d
Two missing entries in each group; one in the WNV illness group because of neonatal death.
e
The mother of the child with pyloric stenosis also had hypertrophic pyloric stenosis.
IgG, immunoglobulin G; IgM, immunoglobulin M; WNV, West Nile virus.