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Table 2 Number of studies, pooled seroprevalence, Confidence Interval of 95% (95%CI) and heterogeneity (I2) in meta-analysis by WHO Region

From: Chikungunya seroprevalence in population-based studies: a systematic review and meta-analysis

Region

N of studies

Seroprevalence

95% CI

I2 (%)*

African

4

31

21–41

99.43

Americas

15

29

19–39

99.68

Eastern Mediterranean

6

5

1–10

96.21

European

4

5

0–17

99.88

South-East Asian

7

24

19–29

99.73

Western Pacific

15

18

7–32

99.78

  1. * p-value was < 0.00 in all heterogeneity tests