Table 2.
Factors Associated With Zika Virus Seropositivity
| Characteristic | Total No. of Tested Individuals | Weighted Prevalence, % (95% CI) |
Crude PR (95% CI) | Pearson P Value | Adjusted PR (95% CI) |
|---|---|---|---|---|---|
| Sex | … | ||||
| Male | 1108 | 22.8 (19.6–26.5) | Ref | .65 | |
| Female | 1589 | 23.8 (21.0–26.8) | 1.04 (.87–1.24) | ||
| Age, y | … | ||||
| 2–4 | 63 | 27.0 (15.2–43.3) | Ref | .47 | |
| 5–14 | 494 | 24.1 (19.1–30.1) | .89 (.50–1.59) | ||
| 15–24 | 413 | 25.9 (21.0–31.6) | .96 (.56–1.66) | ||
| 25–34 | 471 | 23.6 (19.2–28.7) | .87 (.51–1.50) | ||
| 35–44 | 442 | 19.7 (15.8–24.3) | .73 (.43–1.25) | ||
| 45–54 | 362 | 21.2 (16.5–26.8) | .78 (.44–1.39) | ||
| 55–64 | 284 | 18.9 (14.3–24.6) | .70 (.39–1.27) | ||
| ≥65 | 168 | 28.3 (20.4–37.7) | 1.05 (.56–1.95) | ||
| Region of residence | |||||
| Coastal area | 1820 | 22.2 (19.4–25.3) | Ref | .06 | Ref |
| Low Maroni | 424 | 28.8 (23.4–34.8) | 1.29 (1.02–1.64) | 1.41 (1.02–1.95) | |
| High Maroni | 194 | 25.5 (17.2–36.0) | 1.15 (.78–1.70) | 1.51 (.91–2.50) | |
| Low Oyapock | 99 | 27.0 (13.5–46.8) | 1.21 (.64–2.32) | 1.77 (.89–3.52) | |
| High Oyapock | 115 | 3.7 (1.3–9.8) | .16 (.61–.46) | .26 (.94–.75) | |
| Interior | 45 | 1.0 (.1–6.9) | .04 (.01–.33) | .07 (.01–.52) | |
| Type of housing | … | ||||
| Building/collective | 365 | 21.5 (16.4–27.6) | Ref | .05 | |
| Individual | 1768 | 23.8 (20.8–27.2) | 1.11 (.83–1.49) | ||
| Carbet | 213 | 5.9 (1.6–18.9) | .27 (.08–.97) | ||
| Makeshift | 89 | 28.3 (17.7–42.1) | 1.32 (.79–2.19) | ||
| Type of zone | |||||
| Rural | 1304 | 19.4 (16.2–23.1) | Ref | .03 | Ref |
| Urban | 1393 | 24.8 (21.7–28.1) | 1.28 (1.02–1.58) | 1.45 (1.11–1.91) | |
| Birth place | |||||
| French Guiana | 1481 | 23.4 (20.2–27.1) | Ref | <10–2 | Ref |
| Suriname | 213 | 27.0 (20.2–35.1) | 1.15 (.85–1.57) | 1.08 (.75–1.56) | |
| Brazil | 174 | 19.1 (13.3–26.7) | .82 (.56–1.19) | .82 (.55–1.22) | |
| Other South America | 63 | 27.6 (17.7–40.3) | 1.18 (.77–1.80) | 1.18 (.74–1.88) | |
| Haiti | 223 | 34.3 (20.6–42.3) | 1.46 (1.14–1.88) | 1.45 (1.08–1.94) | |
| Caribbean island | 136 | 20.6 (13.5–30.2) | .88 (.58–1.34) | .82 (.51–1.31) | |
| Europe | 349 | 17.0 (12.4–22.8) | .72 (.52–1.01) | .76 (.54–1.08) | |
| Asia | 28 | 4.6 (1.08–17.6) | .20 (.04–.82) | .23 (.05–1.14) | |
| Africa | 22 | 12.4 (3.1–38.6) | .53 (.14–1.97) | .56 (.15–2.15) | |
| Others | 8 | 6.1 (.7–36.6) | .26 (.03–2.04) | .32 (.04–2.50) | |
| Household size | … | ||||
| 1–2 | 536 | 20.0 (16.2–24.5) | Ref | .41 | |
| 3–5 | 1359 | 24.1 (20.7–27.8) | 1.20 (.93–1.55) | ||
| ≥6 | 592 | 24.6 (18.8–31.6) | 1.23 (.88–1.72) | ||
| Household income, € | |||||
| <1000 | 565 | 26.9 (22.2–32.1) | Ref | .10 | Ref |
| 1000–2999 | 833 | 24.5 (19.7–29.9) | .83 (.48–1.41) | .92 (.67–1.25) | |
| 3000–4999 | 285 | 17.7 (12.5–24.3) | .53 (.33–.86) | .72 (.46–1.12) | |
| ≥5000 | 153 | 15.7 (9.4–24.9) | .48 (.24–.94) | .66 (.37–1.16) | |
| Not documented | 861 | 24.0 (19.8–28.8) | .78 (.56–1.10) | .87 (.62–1.22) | |
| Socioeconomic index | |||||
| Low | 233 | 16.3 (10.8–23.9) | Ref | .06 | Ref |
| Intermediate | 908 | 26.5 (21.8–31.8) | 1.63 (1.04–2.53) | 1.48 (.96–2.26) | |
| Elevated | 1291 | 21.4 (18.3–24.9) | 1.31 (.85–2.02) | 1.59 (.97–2.59) | |
| Health insurance status | … | ||||
| General social coverage | 1330 | 20.2 (17.3–23.5) | Ref | <10–2 | |
| Universal health coverage | 1233 | 25.4 (21.5–29.7) | 1.26 (1.00–1.57) | ||
| State medical assistance | 128 | 36.9 (27.6–47.2) | 1.83 (1.34–2.49) | ||
| No healthcare | 6 | 20.1 (2.5–70.8) | .99 (.16–6.94) | ||
Abbreviations: CI, confidence interval; PR, prevalence ratio.