The impact of dialysis therapy on older patients with advanced chronic kidney disease: a nationwide population-based study

Table 2 Hazard ratios for mortality according to receipt of chronic dialysis during follow up

Variables	Number of deaths	Exposure time, patient-years	Crude hazard ratio (95%CI)	Pvalue	Adjusted hazard ratio^a(95%CI)	Pvalue
Not receiving chronic dialysis	1,699	13,071	(Referent)		(Referent)
Receiving chronic dialysis^b	4,108	15,326	1.35 (1.26 to 1.44)	<0.001	1.39 (1.30 to 1.49)	<0.001

^aAdjusted for all covariates listed in Table 1. ^bChronic dialysis was calculated as a discrete time-dependent covariate. CI, confidence interval.

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