Variable

GBS negative (n = 3355) (%)

GBS carriers (n = 484) (%)

OR (95% CI)

P value

Age group (years)

[15-30]

86.3

13.7

0.83

0.071

[31-49]

88.3

11.7

Gestational age

1^st and 2^nd trimester

88.2

11.8

1.11

0.001

3^rd trimester

87

13

Parity

Primiparity

86

14

1.38 [1.13-1.68]

0.001

Multiparity

89.4

10.6

Altered vaginal flora

28.1

44

2.01[1.65-2.44]

< 0,001

Vaginal candidiasis

36.2

44.9

1.44 [1.18-1.76]

< 0,001

Gestational diabetes

10.8

12.1

1.14 [0.85-1.51]

0.376

Premature delivery threat

0.7

0.8

1.11 [0.38-3.19]

0.854

Premature membranes rupture

0.2

0.5

0.38 [0.05-2.87]

0.286