Table 2.
Association between cervicovaginal microbiota community state type at 16 to 20 weeks’ gestation and Group B Streptococcus status on rectovaginal culture
| CST | GBS RV+ n (%) | RR (95% CI) | aRR (95% CI)a |
|---|---|---|---|
| V1: 16–20 wk (N = 492) | 169 (34.3) | ||
| I (n = 136) | 35 (25.7) | Ref. | Ref. |
| II (n = 32) | 18 (56.3) | 2.19 (1.44–3.32) | 2.08 (1.35–3.22) |
| III (n = 96) | 35 (36.5) | 1.42 (0.96–2.09) | 1.35 (0.90–2.02) |
| IV-A (n = 69) | 29 (42.0) | 1.63 (1.10–2.43) | 1.56 (1.02–2.37) |
| IV-B (n = 115) | 39 (33.9) | 1.32 (0.90–1.93) | 1.26 (0.84–1.88) |
| V (n = 44) | 13 (29.6) | 1.15 (0.67–1.97) | 1.13 (0.66–1.95) |
Abbreviations: CI, confidence interval; CST, community state type; GBS, Group B Streptococcus; Ref., reference; RV, rectovaginal.
a
Adjusted for Black race, parity, and pregestational diabetes.