Table 5.
Associations between bacterial vaginosis and adverse outcomes among all infants, Washington State, 2003-2013, adjusted for maternal age and race (N = 12,340)
| BV exposed | BV unexposed | RR | 95 % CI | aRR | 95 % CI | |||
|---|---|---|---|---|---|---|---|---|
| N = 2468 | N = 9872 | |||||||
| n | % | n | % | |||||
| Preterm birth | 267 | 10.8 | 708 | 7.2 | 1.51 | 1.32–1.72 | 1.55 | 1.34–1.78 |
| Assisted ventilation at birth | 151 | 6.1 | 425 | 4.3 | 1.42 | 1.19–1.70 | 1.45 | 1.21–1.75 |
| Admission to NICU at birth | 213 | 8.7 | 519 | 5.3 | 1.65 | 1.42–1.92 | 1.73 | 1.47–2.03 |
| Neonatal sepsis | 95 | 3.9 | 209 | 2.1 | 1.82 | 1.43–2.31 | 1.86 | 1.44–2.41 |
| Fetal Mortality | 25 | 1.0 | 35 | 0.4 | 2.86 | 1.71–4.76 | 2.79* | 1.54–5.05 |
| 2nd trimester | 16 | 0.7 | 7 | 0.1 | 12.22 | 4.29–34.79 | 10.42* | 3.55–30.61 |
| 3rd trimester | 9 | 0.4 | 28 | 0.3 | 1.49 | 0.65–3.40 | 1.31* | 0.55–3.11 |
| Infant mortality | 21 | 0.9 | 45 | 0.5 | 1.89 | 1.12–3.15 | 1.61 | 0.90–2.90 |
BV bacterial vaginosis, RR risk ratio, aRR adjusted risk ratio, CI confidence interval, NICU neonatal intensive care unit
*further adjusted for presence of a maternal comorbidity (hypertension, diabetes, and/or pre-eclampsia)