Table 2. Effect of CDC on All-Cause Mortality of Different Time Frame after Discharge.

Variable		No. of deaths	No. of subjects	Mortality rate (%)	aRR	95% CI	p-value
30-Day mortality
	No-CDC group	219	9,651	2.27	1 (Reference)
	CDC group	8	124	6.45	2.57	1.51–4.37	0.001
90-Day mortality
	No-CDC group	511	9,651	5.29	1 (Reference)
	CDC group	17	124	13.71	2.17	1.51–3.11	< 0.001
1-Year mortality
	No-CDC group	1,303	9,651	13.50	1 (Reference)
	CDC group	27	124	21.77	1.50	1.16–1.93	0.002

CDC: Clostridium difficile colitis, aRR: adjusted risk ratio, CI: confidence interval.