• Susan P Y Wong, William Kreuter, and Ann M O'Hare.
• Department of Medicine and.
• J. Am. Soc. Nephrol. 2014 Jan 1;25(1):143-9.

AbstractLittle is known about the circumstances under which older adults initiate chronic dialysis and subsequent outcomes. Using national registry data, we conducted a retrospective analysis of 416,657 Medicare beneficiaries aged ≥67 years who initiated chronic dialysis between January 1995 and December 2008. Our goal was to define the relationship between health care intensity around the time of dialysis initiation and subsequent survival and patterns of hospitalization, use of intensive procedures (mechanical ventilation, feeding tube placement, and cardiopulmonary resuscitation), and discontinuation of dialysis before death. We found that most patients (64.5%) initiated dialysis in the hospital, including 36.6% who were hospitalized for ≥2 weeks and 7.4% who underwent one or more intensive procedures. Compared with patients who initiated dialysis in the outpatient setting, those who received the highest intensity of care at dialysis initiation (those hospitalized ≥2 weeks and receiving at least one intensive procedure) had a shorter median survival (0.7 versus 2.1 years; P<0.001), spent a greater percentage of remaining follow-up time in the hospital (median, 22.9% versus 3.1%; P<0.001), were more likely to undergo subsequent intensive procedures (44.9% versus 26.0%; adjusted hazard ratio, 2.33; 95% confidence interval [CI], 2.27 to 2.39), and were less likely to have discontinued dialysis before death (19.1% versus 26.2%; adjusted odds ratio, 0.68; 95% CI, 0.65 to 0.72). In conclusion, most older adults initiate chronic dialysis in the hospital. Those who have a prolonged hospital stay and receive other forms of life support around the time of dialysis initiation have limited survival and more intensive patterns of subsequent healthcare utilization.

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