Table 1

Basic clinical characteristics of the study population.

Healthy vaginal microflora (n = 80)

Disturbed vaginal microflora (n = 18)

p-value


    Maternal age
(years) – mean ± SD

30.5 ± 4.7

30.2 ± 5.7

0.8

    Gestational age
(weeks) – mean ± SD

9.3 ± 2.6

8.7 ± 2.8

0.4

    Body mass index
(kg/m2) – mean ± SD

22.7 ± 4.0

24.9 ± 5.8

0.05

    Body mass index
(kg/m2) – % (n)

<25

77.5% (62)

50.0% (9)

0.04

≥25

22.5% (18)

50.0% (9)

    Parity
– % (n)

0

43.8% (35)

16.7% (3)

0.04

≥1

56.3% (45)

83.3% (15)

    Gravidity
– % (n)

0

35.0% (28)

11.1% (2)

0.05

≥1

65.0% (52)

88.9% (16)

    Smoking
– % (no)

Yes

11.1% (2)

22.2% (4)

0.1

No

88.9% (16)

77.8% (14)


Healthy vaginal flora is defined as grade I or lactobacilli-dominated microflora on Gram stain (corresponding to a Nugent score 0 – 3) and disturbed vaginal flora is defined as grade II and grade III flora, this is mixed or gram-negative rods-dominated microflora on Gram stain (corresponding to a Nugent score ≥4). Body mass index (BMI) refers to the BMI at entry to prenatal care and is calculated as weight (kg)/[length (m)]2.

Verstraelen et al. BMC Infectious Diseases 2005 5:55   doi:10.1186/1471-2334-5-55

Open Data