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Table 2 Results of a random effects logistic regression model examining factors associated with presence of Giardia duodenalis in cattle feces from feedlots from central and western United States.

From: Giardia duodenalis in feedlot cattle from the central and western United States

Predictor Odds Ratio (95% confidence interval) P- value
Days in feedlot 0.994 (0.991, 0.997) <0.001
Avg. Temperature (°C) 0.978 (0.965, 0.991) <0.001
Pen density (m 2 /head) 1.001 (1.000, 1.002) 0.02
Coccidiostat in feed   
   Yes Referent category  
   No 0.704 (0.501, 0.989) 0.04
Manure removal between lots Referent category  
   Yes 1.83 (1.31, 2.57)  
   No   <0.001