Abstract

The aim of this study was to evaluate the relation between pre-nephrology visit (PNV) and 1-yr patient survival after hemodialysis (HD) induction. Data were analyzed from 8500 incident HD patients (on HD <or=30 d) in the Dialysis Outcomes and Practice Patterns Study (DOPPS) phases I and II. A visit to a nephrologist at least 1 mo before starting HD was regarded as PNV. Cox regression was used to estimate the adjusted hazard ratio (AHR) for mortality in the first year of HD in both patient- and facility-level analyses. All models were adjusted for age, sex, race, socioeconomic factors, cause of ESRD, 14 comorbid conditions, hemoglobin, serum albumin, and serum creatinine; accounted for facility clustering effects; and were stratified by country. In patient-level analysis, PNV was associated with significantly lower risk for death (AHR 0.57; P < 0.0001). Facility-level analysis also showed a significant lower risk for death in facilities with greater prevalence of PNV in both continuous models (AHR 0.92 per 10% greater facility mean %PNV; P < 0.0004) and in categorical models (AHR 0.71 for facilities with >90% of patients receiving PNV [first quartile] compared with facilities with <71% of patients receiving PNV [fourth quartile]; P = 0.001). These results provide not only patient-level but also facility practice evidence that PNV is related to improved patient survival during the first year after initiation of HD, indicating the possible mortality benefits with more increased attention to PNV.

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