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Table 3 Predictive accuracies of microbial species dominance at 16 weeks for gestation <34 weeks

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

CST

Species

Preterm birth <34 weeks

Birth >34 weeks

Sens/DR (%)

Spec (%)

PPV (%)

NPV (%)

Sens/DR (%)

Spec (%)

PPV (%)

NPV (%)

I

L. crispatus

11

56

3

83

44

89

97

17

II

L. gasseri

6

89

6

88

11

94

94

12

III

L. iners

67

71

22

94

29

33

78

6

IV

Diverse

6

93

9

89

7

94

91

11

V

L. jensenii

11

92

14

89

8

89

86

11

  1. CST community state type based on ward HCA of species data, Sens/DR sensitivity or detection rate, Spec specificity, PPV/NPV positive/negative predictive values