TABLE 4.

Maximum likelihood estimates and standard errors for factors related to the isolation of C. jejuni from cattle feces

Parametera	Estimate	SE	P value
Intercept	−0.21	0.12	0.07
Minimum age of fecal pat = 2.5	−0.39	0.18	0.03
Minimum age of fecal pat = 3	−0.97	0.19	<0.001
Minimum age of fecal pat = 3.5	−1.7	0.34	<0.001
Minimum age of fecal pat = 4	−3.0	0.71	<0.001
Presence of C. jejuni in bird feces	0.77	0.28	0.005
Rain	−0.77	0.21	<0.001

^aAge scores are as follows: 2,recently voided with some early signs of aging; 3, clear signs of aging but still retaining integrity; 4, aged.