Table 3 The predictive value of the presence (cut off level: 1 × 10⁴ cells) of P. bivia, P. disiens, M. curtisii, M. mulieris, B. ureolyticus, and V. cambriense in vaginal samples for the diagnosis of gingivitis (20% cutoff level)

Prevotella bivia

0.18

0.97

3.9

1.7 to 33.8

< 0.001

Prevotella disiens

0.57

0.83

3.6

1.8 to 7.1

< 0.001

Mobiluncus curtisii

0.37

0.83

3.8

1.4 to 5.8

< 0.01

Mobiluncus mulieris

0.26

0.93

4.6

1.8 to 12.6

< 0.01

Bacteroides ureolyticus

0.21

0.93

3.3

1.2 to 9.1

< 0.02

Varibaculum cambriense

0.38

0.77

2.0

1.0 to 4.1

< 0.05