Table 1.

Differences in positive C. difficile culture rates among 1231 inpatients by hospital, gender and age

Patient characteristics	C. difficile culture		Positive rate (%)	χ2	P value
	-	+
Hospital				6.051	0.049*
A	408	70	14.64
B	165	15	7.67
C	477	71	12.72
Gender				2.992	0.084
Female male male	550	80	11.27
Male	379	76	14.59
Age (year)				6.707	0.569
0–3	454	64	12.36
4–10	47	8	14.55
11–20	13	2	13.33
21–30	42	2	4.54
31–40	71	8	10.13
41–50	83	13	13.68
51–60	115	16	12.21
61–70	129	27	17.31
≥ 71	121	16	11.68

Hospital A: The First Affiliated Hospital of Xi’an Jiaotong University, B: Xi’an High-tech Hospital, C: Xi’an Children’s Hospital

*Significant difference