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Characteristics and 1-year survival of incident patients on chronic peritoneal dialysis compared with hemodialysis:a large 11-year cohort study

  • Nephrology - Original Paper
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Abstract

Purpose

Few studies have evaluated patients’ characteristics and survival by dialysis modality in Brazil. We evaluated changes in dialysis modality and its survival in the country.

Methods

This is a retrospective database of a cohort with incident chronic dialysis patients from Brazil. Patients’ characteristics and one-year multivariate survival risk were assessed considering dialysis modality from 2011 to 2016 and 2017 to 2021. Survival analysis was also performed on a reduced sample after adjustment using propensity score matching.

Results

Of the 8295 dialysis patients, 5.3% were on peritoneal dialysis (PD) and 94.7% on hemodialysis (HD). PD patients had higher BMI, schooling and the prevalence of elective dialysis starting in the first period than those on HD. In the second period, PD patients were predominantly women, non-white, from the Southeast region, and funded by the public health system, having more frequent elective dialysis starting and predialysis nephrologist follow-ups than those on HD. There was no difference in mortality comparing PD and HD (HR 0.67, 95% CI 0.39–2.42; and HR 1.17, 95% CI 0.63–2.16; first and second period, respectively). This non-significantly different survival between both dialysis methods was also found in the reduced matched sample. Higher age and non-elective dialysis initiation were associated with higher mortality. In the second period, the lack of predialysis nephrologist follow-up and living in the Southeast region increased the mortality risk.

Conclusion

Some sociodemographic factors have changed according to dialysis modality over the last decade in Brazil. The one-year survival of the two dialysis methods was comparable.

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Data availability

The datasets generated and analyzed during the current study are available from the corresponding author upon reasonable request.

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Acknowledgements

Brazilian Dialysis Register Investigators: Beatriz Veneza; Carlos Eduardo Comin; Yoshimi Watanabe; João Carlos Biernat; Patrícia Sigolo Teixeira; Sérgio Gardano Elias Bucharles; Elzo Ribeiro Junior; Geraldo Antunes Córdova; Marcelo Augusto Gonçalves; Gisele Fernandes Furtado; Roberto Eduardo Salon; Milene Cristina Devito Guilhem; Hotone Dallacosta; Marco Túlio; Renato Jorge Palmeira de Medeiros; Elisa de Albuquerque Sampaio; Jorge Luiz Zanette Ramos; Gelson Antonio dos Santos; Orlando Belin Junior; Neyde Vinhacico Pontes; Ana Cristina Matos; Ciro Tavares Costa; Luiz Felipe B. de Figueiredo; Sílvia Corradi Faria de Medeiros; Cyro Nogueira Fraga Moreira Filho; Homero Neto de Cunha e Agra Sul; Wagner Santa Catharina; Sandra Teresa de Souza Neiva Coelho; Manif Curi Jorge; Mendell Douglas Lemos; Rodrigo Motta Pereira; Maziael Moraes; Helio Enzio Galvão; Rosilene Coelho; Ronaldo Luiz Ennes Allão; Luiz Claudio Albuquerque Gonçalves; Jair Batista Miguel; Rosa Malta; Jorge Arnaldo Valente de Menezes; Raimundo Martins Neto; Maria Emilia Duarte Diniz; Sinaria Amaral Ojeda; Flávio José Dutra de Moura; Luciana Fernandes Serpa; Tania Duran Sobral; Marcos Ari Mura; Ana Cláudia Vaz do Amaral Barbosa; Marcos Gevert ; Nelson José; Zita Maria Leme; Márcio Azevedo Moraes; Fabia Fernandez; Natasha Silva Constancio; Roberto Benvenutti; Ian Robert Rehfeldt; Julio Cesar; Marilia Bahiense Oliveira; Flavio Menezes de Paula; Nilsa do Rosario Martins; Dra. Denise de Melo; Ismar Caetano Monteiro Junior; Jeronimo Ruiz Centeno; Luiz Antonio C. Pais; Consuelo Veloso de Carvalho; Aparecida Paula Gondim Visoná; Maria Goretti Polito; Januário Gonçalves Roberto; Glória Maria Furatado dos Reis; João Damásio Sottero Simões; Tânia Brandão; Fernando Saldanha Thomé; Ana Lydia Cabeça; Marcos Scheidemantel; Márcia Beatriz Hexsel Abichequer; Eli Nogueira da Silva; Silvana Mourão Oliveira; Renata Lamego Starling; José Miguel Viscarra Obregón; Marcelo Freire Ruas; Antonio Alberto Coelho de Brito; Ana Bela de Barros Palazzo; Mario Ernesto Rodrigues; Rafael Cruzeiro Siqueira; Aluizio da Costa e Silva; Nilso Moreira; Maria de Fátima Alvarenga; João Carvalho Filho; André Luiz Marassi; Rodrigo Braz; Cristiano Viana da Silva; Fernanda Salomão Gorayeb Polacchini; Henrique Luiz Carrascossi; Leandro Júnior Lucca; Gelzie Sorrentino Ennes.

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Correspondence to Helbert do Nascimento Lima.

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The members of the Brazilian Dialysis Register Investigators are listed in Acknowledgements.

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do Nascimento Lima, H., Nerbass, F.B., Lugon, J.R. et al. Characteristics and 1-year survival of incident patients on chronic peritoneal dialysis compared with hemodialysis:a large 11-year cohort study. Int Urol Nephrol 55, 2025–2033 (2023). https://doi.org/10.1007/s11255-023-03489-1

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