Table 4.
Bivariate analysis of factors potentially associated with self-reported dengue illness among household members in the previous year
| Dengue | OR | 95% CI | 95% CIca | ||
|---|---|---|---|---|---|
| Proportion | % | ||||
| Larvivorous fish present in at least one water container | |||||
| Yes | 125/7589 | 1.6 | 0.66 | 0.54–0.79 | 0.48–0.90 |
| No | 862/34887 | 2.5 | |||
| Household use | |||||
| Business/home & business | 991/42332 | 2.3 | 0.97 | 0.75–1.34 | 0.63–1.48 |
| Home | 56/2316 | 2.5 | |||
| Area of residence | |||||
| Rural | 488/25439 | 1.9 | 0.66 | 0.58–0.74 | 0.47–0.92 |
| Urban | 176/1688 | 2.9 | |||
| Household positive for Ae. aegypti larvae/pupae | |||||
| Yes | 178/6343 | 2.8 | 1.25 | 1.05–1.46 | 0.96–1.63 |
| No | 870/38477 | 2.3 | |||
| Type of household | |||||
| Permanent or semi-permanent | 379/17580 | 2.2 | 0.87 | 0.76–0.99 | 0.69–1.09 |
| Provisional or unstable | 666/26924 | 2.5 | |||
| Number of times temephos was distributed on the premises (in the last year) | |||||
| 4–20 times | 144/7482 | 1.9 | 0.79 | 0.65–0.94 | 0.60–1.05 |
| 0–3 times | 861/35559 | 2.4 | |||
| Temephos observed in water containers (less than 2 months old) | |||||
| Temephos in 1 or more containers (1–15) | 246/8690 | 2.8 | 1.30 | 1.11–1.50 | 1.04–1.63 |
| No temephos | 741/33790 | 2.2 | |||
| Use of insecticide anti-mosquito products | |||||
| Yes | 680/22555 | 3.0 | 1.84 | 1.62–2.1 | 1.48–2.28 |
| No | 362/21791 | 1.7 | |||
| Tap water in the household | |||||
| Yes | 853/38320 | 2.2 | 0.73 | 0.63–0.87 | 0.48–1.10 |
| No | 195/6257 | 3.0 | |||
| Educational level of household head | |||||
| Six years of primary school or higher | 747/27698 | 2.7 | 1.53 | 1.34–1.77 | 1.23–1.91 |
| 0–5 years of primary school | 296/16671 | 1.8 | |||
| Language | |||||
| Spanish | 930/39470 | 2.4 | 1.06 | 0.88–1.32 | 0.65–1.72 |
| Indigenous language | 112/5027 | 2.2 | |||
| Oportunidades beneficiarya | |||||
| Yes | 491/24152 | 2.0 | 0.75 | 0.66–0.85 | 0.58–0.96 |
| No | 554/20515 | 2.7 | |||
| People per household | |||||
| < 6 people | 716/27113 | 2.6 | 1.42 | 1.25–1.63 | 1.14–1.77 |
| ≥ 6 people | 332/17706 | 1.9 | |||
| Sex of household member | |||||
| Male | 513/21494 | 2.4 | 1.04 | 0.92–1.18 | 0.92–1.17 |
| Female | 535/23324 | 2.3 | |||
| Age of household member | |||||
| < 30 years | 626/25545 | 2.5 | 1.12 | 0.99–1.30 | 0.95–1.32 |
| ≥ 30 years | 422/19275 | 2.2 | |||
Bold font indicates associations significant at the 5% level
aOportunidades, now called Prospera, is a Mexican government programme of cash transfers to mothers to encourage them to send their children to school and to health centres.