Table 4.
Associations between bacterial vaginosis and adverse outcomes among preterm infants (less than 37 weeks gestation), Washington State, 2003-2013, adjusted for gestational age, maternal age, and maternal race (N = 975)
| BV exposed | BV unexposed | RR | 95 % CI | aRR | 95 % CI | |||
|---|---|---|---|---|---|---|---|---|
| N = 267 | N = 708 | |||||||
| n | % | n | % | |||||
| Assisted ventilation at birth | 51 | 19.1 | 94 | 13.3 | 1.44 | 1.05–1.96 | 1.23 | 0.89–1.73 |
| Admission to NICU at birth | 124 | 50.4 | 246 | 36.0 | 1.40 | 1.20–1.64 | 1.24 | 1.04–1.46 |
| Neonatal sepsis | 47 | 17.6 | 82 | 11.6 | 1.52 | 1.09–2.11 | 1.31 | 0.91–1.89 |
| Fetal Mortality | 21 | 7.9 | 21 | 3.0 | 2.65 | 1.47–4.78 | 1.25 | 0.67–2.33 |
| Infant mortality | 17 | 6.9 | 21 | 3.1 | 2.26 | 1.21–4.22 | 1.10 | 0.66–1.84 |
BV bacterial vaginosis, RR risk ratio, aRR adjusted risk ratio, CI confidence interval, NICU neonatal intensive care unit