Table 3.
Bivariate logistic regression analysis of influenza‐like illness (ILI) and demographic and socioeconomic factors
| All ILI | Influenza A virus or influenza B virus infection | |
|---|---|---|
| Crude OR (95% CI) | Crude OR (95% CI) | |
| Age (years) | ||
| 0–4 | 1 | 1 |
| 5–14 | 0·53 (0·40–0·72) | 0·60 (0·32–1·13) |
| 15–29 | 0·23 (0·17–0·32) | 0·16 (0·08–0·33) |
| 30–44 | 0·22 (0·16–0·32) | 0·23 (0·10–0·48) |
| 45–59 | 0·27 (0·18–0·39) | 0·25 (0·10–0·55) |
| 60+ | 0·31 (0·20–0·46) | 0·26 (0·09–0·64) |
| Residents/room | ||
| <1 | 1 | 1 |
| 1–1·9 | 1·3 (1·05–1·63) | 0·67 (0·40–1·10) |
| 2+ | 2·07 (1·59–2·68) | 1·46 (0·83–2·51) |
| Construction | ||
| Brick/concrete | 1 | 1 |
| Mixed | 1·23 (0·98–1·54) | 1·13 (0·68–1·87) |
| Wood | 1·64 (1·27–2·10) | 1·41 (0·79–2·49) |
| Roof eaves | ||
| Closed | 1 | 1 |
| Open | 1·15 (0·92–1·47) | 1·43 (0·83–2·65) |
| Cooking fuel | ||
| Gas | 1 | 1 |
| Gas/Wood | 1·32 (1·03–1·69) | 1·59 (0·90–2·86) |
| Wood | 1·69 (1·29–2·11) | 1·98 (1·16–3·50) |