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Comparative Study
. 2013 Jan 18:13:26.
doi: 10.1186/1472-6963-13-26.

Comparison of outcomes for veterans receiving dialysis care from VA and non-VA providers

Virginia Wang  1 , Matthew L Maciejewski, Uptal D Patel, Karen M Stechuchak, Denise M Hynes, Morris Weinberger
Affiliations
Comparative Study

Comparison of outcomes for veterans receiving dialysis care from VA and non-VA providers

Virginia Wang et al. BMC Health Serv Res. .

Abstract

Background: Demand for dialysis treatment exceeds its supply within the Veterans Health Administration (VA), requiring VA to outsource dialysis care by purchasing private sector dialysis for veterans on a fee-for-service basis. It is unclear whether outcomes are similar for veterans receiving dialysis from VA versus non-VA providers. We assessed the extent of chronic dialysis treatment utilization and differences in all-cause hospitalizations and mortality between veterans receiving dialysis from VA versus VA-outsourced providers.

Methods: We constructed a retrospective cohort of veterans in 2 VA regions who received chronic dialysis treatment financed by VA between January 2007 and December 2008. From VA administrative data, we identified veterans who received outpatient dialysis in (1) VA, (2) VA-outsourced settings, or (3) both ("dual") settings. In adjusted analyses, we used two-part and logistic regression to examine associations between dialysis setting and all-cause hospitalization and mortality one-year from veterans' baseline dialysis date.

Results: Of 1,388 veterans, 27% received dialysis exclusively in VA, 47% in VA-outsourced settings, and 25% in dual settings. Overall, half (48%) were hospitalized and 12% died. In adjusted analysis, veterans in VA-outsourced settings incurred fewer hospitalizations and shorter hospital stays than users of VA due to favorable selection. Dual-system dialysis patients had lower one-year mortality than veterans receiving VA dialysis.

Conclusions: VA expenditures for "buying" outsourced dialysis are high and increasing relative to "making" dialysis treatment within its own system. Outcomes comparisons inform future make-or-buy decisions and suggest the need for VA to consider veterans' access to care, long-term VA savings, and optimal patient outcomes in its placement decisions for dialysis services.

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Figures

Figure 1
Figure 1
Cohort of chronic dialysis veterans. Note: To identify dialysis treatment utilization, VA clinic stop codes (601–611) were used to identify VA dialysis service use in VA encounter files and CPT procedure codes (90935, 90937, 90945, 90947, and 90999) were used to identify nonVA dialysis service use in the VA Fee Basis claims files.
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