Table 1. Results from the final logistic regression model for the presence of Escherichia coli O157:H7 in fecal samples from naturally infected feedlot cattle.

Variable	Odds ratio	95% CI	P-value
Intercept	0.001		<0.001
Average maximum temperature during the 30 days prior to sampling	1.096	[1.071–1.121]	<0.001
Initial weight at entry to the feedlot	0.998	[0.997–0.999]	<0.001