Table 2. Age-adjusted seroprevalence by MIA in participants aged over 16 in the general population of the Society Islands in French Polynesia, based on serosurveys conducted in 2014 (n = 48) and 2015 (n = 672).
| Virus | 2014 seroprevalence (95% CI) | 2014 age-adjusted seroprevalence (95% CI) | 2015 seroprevalence (95% CI) | 2015 age-adjusted (95% CI) |
|---|---|---|---|---|
| DENV1 | 85 (72–94) | 83 (55–100) | 80 (77–83) | 80 (71–91) |
| DENV2 | 48 (33–62) | 50 (28–87) | 19 (16–22) | 21 (15–21) |
| DENV3 | 75 (60–86) | 72 (47–100) | 56 (52–60) | 55 (48–64) |
| DENV4 | 63 (47–76) | 65 (40–100) | 42 (38–46) | 45 (38–54) |
| ZIKV | 35 (22–50) | 32 (16–62) | 21 (18–25) | 26 (20–34) |
*chi-squared test comparing 2014 bootstrap estimates with 2015 results.