Table 2.
Apparent prevalence of previous flavivirus infections according to individual, household and environmental features.
| Independent Variables | %FLAV IgG + (95% CI) | p | |
|---|---|---|---|
| Sex * | Male | 20.7 (22.4–26.7) | 0.015 |
| Female | 24.4 (18.7–22.8) | ||
| Age * | 0–4 years | 11.8 (9.8–13.7) | <0.001 |
| 4–10 years | 25.9 (23.7–28.2) | ||
| 10–12 years | 36.4 (32.3–40.9) | ||
| Education of the householder * | Yes | 21.6 (19.5–23.7) | 0.15 |
| No | 24.3 (22.0–26.6) | ||
| Duration of residence of the householder | <10 years | 27.4 (21.6–33.3) | 0.41 |
| 10 to 20 years | 22.6 (19.4–25.7) | ||
| ≥20 years | 22.2 (20.4–23.9) | ||
| Socioeconomic level * | Low | 22.4 (20.5–24.4) | 0.003 |
| Medium | 26.5 (23.2–29.8) | ||
| High | 18.2 (14.8–21.5) | ||
| Water supply * | Tap | 22.2 (19.0–25.5) | 0.03 |
| Pump | 21.9 (20.2–23.7) | ||
| Well | 28.9 (23.6–34.2) | ||
| Waste management * | Improper | 24.1 (22.0–26.3) | 0.05 |
| Adequate | 21.2 (19.1–23.2) | ||
| House appearance * | Good | 24.4 (20.1–23.6) | 0.12 |
| Not good | 21.9 (21.7–27.2) | ||
| Strata | UHBD | 20.2 (17.6–22.9) | <0.001 |
| ULBD | 25.0 (22.1–28.0) | ||
| SHBD | 16.8 (13.6–19.7) | ||
| SLBD | 27.8 (24.4–30.9) | ||
| Districts | Somgandé | 29.7 (25.2–34.3) | <0.001 |
| Yamtenga | 12.7 (9.6–15.5) | ||
| Zongo | 31.2 (26.6–35.5) | ||
| Pissy | 18.8 (15.2–22.8) | ||
| Dapoya | 15.5 (11.7–19.5) | ||
| Patte d’Oie | 18.4 (13.3–22.7) | ||
| Gounghin | 37.3 (31.7–42.1) | ||
| Tanghin | 19.9 (15.9–23.7) | ||
| Building density | High | 18.9 (16.8–20.8) | <0.001 |
| Low | 26.3 (24.1–28.5) | ||
| Area structuration | Yes | 23.1 (20.5–25.0) | 0.97 |
| No | 22.5 (20.6–24.6) | ||
| Total | 22.7 (21.2–24.1) | ||
UHBD = Unstructured High Building Density; ULBD = Unstructured Low Building Density; SHBD = Structured High Building Density; SLBD=Structured Low Building Density. * Variables introduced in the logistic regression analysis.