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Table 2 Distribution of community state types according to ethnicity and gestation at birth

From: The interaction between vaginal microbiota, cervical length, and vaginal progesterone treatment for preterm birth risk

   CST, Species
Total population CST I, L. crispatus CST II, L. gasseri CST III, L. iners CST IV, diverse species CST V, L. jensenii
n/N (%) 161 (100%) 65/161 (40%) 17/161 (11%) 54/161 (34%) 11/161 (7%) 14/161 (9%)
Ethnicity
 Caucasian 104/161 (65%) 52/104 (50%)* 13/104 (13%) 26/104 (25%) 5/104 (5%) 8/104 (8%)
 Asian 27/161 (17%) 7/27 (26%) 3/27 (11%) 13/27 (48%)* 1/27 (4%) 3/27 (11%)
 Black 30/161 (19%) 6/30 (20%) 1/30 (3%) 15/30 (50%)* 5/30 (17%)* 3/30 (10%)
Gestation at birth
 <34 weeks 18/161 (11%) 2/18 (11%)** 1/18 (6%) 12/18 (67%)** 1/18 (6%) 2/18 (11%)
 34–37 weeks 16/161 (10%) 5/16 (31%) 2/16 (13%) 5/16 (31%) 2/16 (13%) 2/16 (13%)
 >37 weeks 127/161 (79%) 58/127 (46%) 14/127 (11%) 37/127 (29%) 8/127 (6%) 10/127 (8%)
  1. CST community state type based on ward HCA of species data
  2. *P < 0.05, **P < 0.01; for comparison of birth <34 vs. >34 weeks, two-tailed Fisher’s exact