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. Author manuscript; available in PMC: 2008 Nov 1.
Published in final edited form as: Fertil Steril. 2007 Apr 16;88(5):1396–1403. doi: 10.1016/j.fertnstert.2007.01.035

Table 2.

Crude and adjusted hazard ratios for the relation between spontaneous abortion and BV status during early pregnancy

BV Status Crude HR 95% CI Adjusted HR 95% CI
BV status
BV status (yes/no) 1.17 0.78 – 1.75 0.84 0.38 – 1.87
Continuous BV Score (0–10) 1.04 0.98 – 1.10 1.24 1.02 – 1.64
Abnormal BV-related flora (BV scores 7–10) vs. normal flora (BV scores 0–3) 1.98 1.13 – 3.48 2.49 1.13 – 5.48
Individual morphotypes
Decreasing Lactobacillus spp. 1.16 1.01 – 1.33 1.32 1.10 – 1.64
Increasing Gardnerella/Bacteroides spp. 1.02 0.92 – 1.14 0.92 0.72 – 1.17
Increasing Mobiluncus spp. 0.97 0.69 – 1.34 0.73 0.47 – 1.14

● HR = hazard ratio.

● Adjusted for gestational age at enrollment, maternal age at enrollment, cigarette use, African American race, vaginal bleeding, history of incompetent cervix, and BV*gestational age interaction term