Table 5.

Association between diarrhea and presence of E. bieneusi in pre-weaned Korean native calves according to age

Age (days)	Fecal consistency	Frequency of E. bieneusi positivity (%)	χ2 (P-value)	OR	95% CI
1–20	Diarrhea	6/102 (5.9)	6.61 (0.010)*	0.28	0.10–0.77
	Non-diarrhea	13/71 (18.3)
21–40	Diarrhea	10/44 (22.7)	0.48 (0.490)	0.74	0.31–1.76
	Non-diarrhea	20/70 (28.6)
41–60	Diarrhea	3/14 (21.4)	1.01 (0.596)	3.27	0.30–36.31
	Non-diarrhea	1/13 (7.7)

*P < 0.05 vs reference (Ref.)