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Table 3 Multivariate model with water and univariately significant composite variables

From: Is drinking water a risk factor for endemic cryptosporidiosis? A case-control study in the immunocompetent general population of the San Francisco Bay Area

EXPOSURE ALL CONTROLS NEIGHBORHOOD CONTROLS
  Odds Ratio 95% CI P-value Odds Ratio 95% CI P-value
Drinking water       
   Boil water 1.00    1.00   
   Filter or bottled 2.00 0.09, 46.8 0.666 1.58 0.05, 51.7 0.796
   Tap watera 3.87 0.20, 74.0 0.369 2.62 0.11, 57.5 0.541
Handle raw foodsa 0.60 0.13, 2.85 0.526 0.44 0.07, 2.88 0.392
Travel 100 miles from home 1.48 0.35, 6.29 0.599 1.33 0.28, 6.29 0.716
Travel to another country 20.9 1.55, 279 0.022 12.3 0.93, 162 0.057
  1. aWithout further treatment or processing. bIncludes handling raw meat, fruit, vegetables