Trend and determinants of mortality in incident hemodialysis patients of the Lazio region

Autor: Maurizio Bossola, Anteo Di Napoli, Laura Angelici, Anna Maria Bargagli, Silvia Cascini, Ursula Kirchmayer, Nera Agabiti, Marina Davoli, Claudia Marino
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: BMC Nephrology, Vol 24, Iss 1, Pp 1-13 (2023)
Druh dokumentu: article
ISSN: 1471-2369
DOI: 10.1186/s12882-023-03170-w
Popis: Abstract Background . In the last decades some studies observed a moderate progressive decrease in short-term mortality in incident hemodialysis patients. The aim of the study is to analyse the mortality trends in patients starting hemodialysis using the Lazio Regional Dialysis and Transplant Registry. Methods . Patients who started chronic hemodialysis between 2008 and 2016 were included. Annual 1-year and 3-year Crude Mortality Rate*100 Person Years (CMR*100PY) overall, by gender and age classes were calculated. Cumulative survival estimates at 1 year and 3 years since the date of starting hemodialysis were presented as Kaplan-Meier curves for the three periods and compared using the log-rank test. The association between periods of incidence in hemodialysis and 1-year and 3-year mortality were investigated by means of unadjusted and adjusted Cox regression models. Potential determinants of both mortality outcomes were also investigated. Results . Among 6,997 hemodialysis patients (64.5% males, 66.1% over 65 years old) 923 died within 1 year and 2,253 within 3 years form incidence; CMR*100PY were 14.1 (95%CI: 13.2–15.0) and 13.7 (95%CI: 13.2–14.3), respectively; both remained unchanged over the years. Even after stratification by gender and age classes no significant changes emerged. Kaplan-Meier mortality curves did not show any statistically significant differences in survival at 1 year and 3 years from hemodialysis incidence across periods. No statistically significant associations were found between periods and 1-year and 3-year mortality. Factors associated with a greater increase in mortality are: being over 65 years, born in Italy, not being self-sufficient, having systemic versus undetermined nephropathy, having heart disease, peripheral vascular disease, cancer, liver disease, dementia and psychiatric illness, and receiving dialysis by catheter rather than fistula. Conclusions . The study shows that the mortality rate in patients with end-stage renal disease starting hemodialysis in the Lazio region was stable over 9 years.
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