Table 4.
Recent dengue infection in children aged 3–9 years, by region
| Region | Percentage (proportion) with evidence of recent dengue infection | |||||
|---|---|---|---|---|---|---|
| Quadrupling of IgG level | 95%CI | Trebling of IgG level | 95%CI | Doubling of IgG level | 95% CI | |
| Acapulcoa | 9.2% (184/1994) | 8.0–10.6 | 12.1% (242/1994) | 10.7–13.6 | 19.4% (387/1994) | 17.7–21.2 |
| Costa Grandeb | 5.2% (97/1869) | 4.2–6.3 | 8.2% (153/1869) | 7.0–9.5 | 16.5% (308/1869) | 14.8–18.3 |
| Costa Chicab | 4.4% (111/2519) | 3–6 – 5.3 | 7.2% (181/2519) | 6.2–8.2 | 15.4% (388/2519) | 14.0–16.9 |
| Total | 6.1% (392/6382) | 5.6–6.8 | 9.0% (576/6382) | 8.3–9.7 | 17.0% (1083/6382) | 16.1–17.9 |
aPaired saliva samples in December 2009 and February 2010
bPaired saliva samples in May and November 2010