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Table 1 Prevalence of CT infection with preterm delivery according to different factors

From: Association of Chlamydia trachomatis infections with preterm delivery; a systematic review and meta-analysis

 

Study NO.

Prevalencea (95% CI)

Weight %

Diagnostic method

PCR

10

0.06 (0.04–0.09)

45.50

Serology

8

0.23 (0.10–0.35)

27.90

Culture

6

0.17 (0.10–0.24)

26.60

Total

24

0.13 (0.11–0.24)

100

Study type

Case – control

9

0.16 (0.11–0.21)

36.67

Sectional

15

0.13 (0.08–0.17)

66.33

Total

24

0.13 (0.11–0.24)

100

Continent

Europe

14

0.13 (0.09–0.18)

59.55

Asia

3

0.08 (−0.01–0.17)

10.70

USA

6

0.15 (0.08–0.22)

20.06

Africa

1

0.29 (0.23–0.34)

3.69

Total

24

0.13 (0.11–0.24)

100

Recognize group

NO

14

0.04 (0.02–0.05)

57.08

Yes

10

0.26 (0.19–0.33)

42.92

Total

24

0.13 (0.11–0.24)

100

  1. aPoint estimate and confidence interval were estimated using random effects model