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Table 4 Logistic regression models presenting the association between effective, ineffective lids compared to no lids on presence of larvae among study households sampled in El Salvador, Guatemala, and Honduras from August to October 2018

From: Use of effective lids reduces presence of mosquito larvae in household water storage containers in urban and peri-urban Zika risk areas of Guatemala, Honduras, and El Salvador

  Washbasins (n = 1735) Containers (n = 654)
Model 1a Model 2a Model 3a Model 4a
OR 95% Confidence interval OR 95% Confidence interval OR 95% Confidence interval OR 95% Confidence interval
No lid Ref.   Ref.   Ref.   Ref.  
Ineffective lid 1.222 0.714, 2.091 1.174 0.672, 2.053 0.388** 0.214, 0.703 0.410*** 0.223, 0.752
Effective lid 0.36* 0.128, 1.000 0.336 0.109, 1.031 0.067*** 0.028, 0.156 0.064*** 0.029, 0.152
Received a visit from a health worker 0.542*** 0.403, 0.728 0.455** 0.271, 0.764
Wealth tertile 1, (poorest) Ref.   Ref.  
Tertile 2 (medium) 0.805 0.570, 1.137 1.452 0.819, 2.577
Tertile 3 (wealthiest) 0.587** 0.397, 0.867 1.094 0.536, 2.234
More mosquitoes around (vs. same or fewer) 1.705** 1.240, 2.346 1.350 0.792, 2.301
Scrubbed container in last 7 days 0.322*** 0.229, 0.452 0.378** 0.256, 0.557 0.439** 0.258, 0.746 0.483* 0.260, 0.899
Frequency of use (every day, vs. less frequent use) 2.309*** 1.503, 3.547 NA   NA  
  1. NA this variable was not available for analysis
  2. aAll models adjust for country
  3. Statistical significance denoted as *p < 0.05; **p < 0.01; ***p < 0.001