Table 1 Demographic characteristics among cases with IgM anti-ZKV cases
Suspected cases reported (n) | Zika IgM | Proportion of IgM+ (95% CI), % | Proportion ratio (95% CI) | p-value | |
|---|---|---|---|---|---|
Total | 850 | 42 | 4.9 (3.5–6.6) | ||
Sex | 0.299 | ||||
Male | 480 | 27 | 5.6 (3.7–7.9) | 1 | |
Female | 369 | 15 | 4.1 (2.1–6.2) | 3.1 (2.6–3.7) | |
Age | |||||
Median (IQR) | 3.0 (1.0–6.0) | 3.0 (1.0–5.0) | |||
Age (years) | 0.521 | ||||
0–1 | 318 | 7 | 2.2 (16.2–20.8) | 1 | |
2–4 | 240 | 14 | 5.8 (25.4–31.5) | 1.45 (0.25–8.16) | |
5–9 | 186 | 14 | 7.5 (18.9–24.9) | 0.71 (0.15–3.28) | |
10–14 | 67 | 3 | 4.5 (6.1–9.8) | 0.59 (0.12–2.74) | |
≥ 15 | 39 | 4 | 4.6 (3.3–6.3) | 0.54 (0. 11–2.55) | |
Regions | 0.087 | ||||
North | 301 | 20 | 6.6 (10.2–17.0) | 1 | |
Central | 356 | 17 | 4.7 (3.9–9.0) | 0.69 (0.81–1.32) | |
South | 193 | 5 | 2.5 (8.5–17.4) | 1.89 (0.61–4.32) | |
Year of onset | 0.356 | ||||
2009 | 62 | 2 | 3.22 (5.7–9.1) | 1.61 (0.35–7.29) | |
2010 | 121 | 8 | 6.6 (12.0–16.6) | 0.76 (0.31–1.86) | |
2011 | 84 | 8 | 9.5 (8.0–12.0) | 0.59 (0.23–1.52) | |
2012 | 88 | 6 | 6.8 (8.4–12.6) | 0.73 (0.27–1.97) | |
2013 | 142 | 4 | 2.8 (14.3–19.3) | 1.85 (0.6–5.75) | |
2014 | 78 | 1 | 1.2 (7.2–11.2) | 4.14 (0.53–32.0) | |
2015 | 275 | 13 | 4.7 (29.3–35.4) | 1 | |