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Table 4 Bivariate analysis of factors potentially associated with self-reported dengue illness among household members in the previous year

From: “Where we put little fish in the water there are no mosquitoes:” a cross-sectional study on biological control of the Aedes aegypti vector in 90 coastal-region communities of Guerrero, Mexico

  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    
  1. Bold font indicates associations significant at the 5% level
  2. 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.