Nephrologist care and mortality in patients with chronic renal insufficiency

Abstract

Background: For patients with chronic renal insufficiency, rates of referral to nephrologists are highly variable, and little is known about the effect of such consultation on clinical outcomes. We sought to determine whether early or frequent access to nephrologist care prior to the initiation of dialysis was associated with a difference in mortality rates in the first year after dialysis began. Methods: We identified all patients in the New Jersey Medicaid and Medicare programs who began maintenance dialysis during a 6-year period and who had been diagnosed with renal disease more than 12 months prior to dialysis. Use of nephrologist services was documented during this 1-year period, along with other clinical and sociodemographic variables. The outcome measure of our analysis was mortality in the first year after initiation of dialysis. Results: From multivariate analyses, we found that patients who did not see a nephrologist until 90 days or less before initiation of dialysis had a 37% higher likelihood of death in the first year of dialysis compared with patients with earlier referral (95% confidence interval, 1.22-1.52; P