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. 2023 Apr-Jun;45(2):192-198.
doi: 10.1590/2175-8239-JBN-2022-0083en.

Brazilian Dialysis Survey 2021

[Article in English, Portuguese]
Fabiana B Nerbass  1 , Helbert do Nascimento Lima  2 , Fernando Saldanha Thomé  3 , Osvaldo Merege Vieira Neto  4 , Ricardo Sesso  5 , Jocemir Ronaldo Lugon  6
Affiliations

Brazilian Dialysis Survey 2021

[Article in English, Portuguese]
Fabiana B Nerbass et al. J Bras Nefrol. 2023 Apr-Jun.

Abstract
in English, Portuguese

Introduction: The Brazilian Dialysis Survey (BDS) is an important source of national data about people on chronic dialysis that contributes to the formulation of health policies regarding kidney failure.

Objective: To report the 2021 epidemiological data from the BDS of the Brazilian Society of Nephrology (BSN).

Methods: A survey was carried out in Brazilian chronic dialysis centers using an online questionnaire covering clinical and epidemiological aspects of patients in chronic dialysis, data on dialysis therapy, characteristics of dialysis centers, and the impact of the COVID-19 pandemic of 2021.

Results: Thirty percent (n = 252) of the centers answered the questionnaire. In July 2021, the estimated total number of patients on dialysis was 148,363. The estimated prevalence and incidence rates of patients per million population (pmp) were 696 and 224, respectively. Of the prevalent patients, 94.2% were on hemodialysis (HD) (1.8% of these on hemodiafiltration), and 5.8% on peritoneal dialysis (PD); 21% were on the transplant waiting list. The incidence rate of confirmed COVID-19 between January and July 2021 was 1,236/10,000 dialysis patients, and the case-fatality rate reached 25.5%. Up to July 2021, 88.6% of patients had received at least one dose of the anti-SARS-CoV-2 vaccine. The estimated overall and COVID-19 crude annual mortality rates were 22.3% and 5.3%, respectively.

Conclusion: The absolute number and the prevalence rate of patients on chronic dialysis continue to increase. Most dialysis patients were vaccinated against COVID-19 during the year. The COVID-19 pandemic was associated to the overall mortality rate.

Introdução:: O Censo Brasileiro de Diálise (CBD) constitui importante fonte de dados nacionais sobre pessoas em diálise crônica que contribui para a formulação de políticas de saúde.

Objetivo:: Relatar dados epidemiológicos de 2021 do CBD da Sociedade Brasileira de Nefrologia (SBN).

Métodos:: Realizou-se pesquisa em centros brasileiros de diálise crônica utilizando questionário online abrangendo aspectos clínicos e epidemiológicos de pacientes em diálise crônica, dados sobre terapia dialítica, características dos centros de diálise e o impacto da pandemia COVID-19 em 2021.

Resultados:: Trinta por cento (n = 252) dos centros responderam ao questionário. Em Julho de 2021, o número total estimado de pacientes em diálise foi 148.363. As taxas estimadas de prevalência e incidência de pacientes por milhão da população (pmp) foram 696 e 224, respectivamente. Dos pacientes prevalentes, 94,2% estavam em hemodiálise (HD) (1,8% destes em hemodiafiltração), e 5,8% em diálise peritoneal (DP); 21% estavam na lista de espera para transplante. A taxa de incidência de COVID-19 confirmada entre Janeiro e Julho de 2021 foi 1.236/10.000 pacientes em diálise, e a taxa de letalidade atingiu 25,5%. Até Julho de 2021, 88,6% dos pacientes haviam recebido pelo menos uma dose da vacina anti-SARS-CoV-2. As taxas estimadas de mortalidade bruta anual geral e por COVID-19 foram de 22,3% e 5,3%, respectivamente.

Conclusão:: O número absoluto e a taxa de prevalência de pacientes em diálise crônica continuam aumentando. A maioria dos pacientes em diálise foram vacinados contra COVID-19 durante o ano. A pandemia COVID-19 contribuiu com a taxa de mortalidade geral.

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Conflict of interest statement

Conflict of Interest The authors declare no conflict of interest.

Figures

Figure 1.
Figure 1.. Estimated number of patients on chronic dialysis per year.
Figure 2.
Figure 2.. Estimated prevalence rate of patients on dialysis by geographic region in Brazil, per million population.
Figure 3.
Figure 3.. Estimated annual crude mortality rate of dialysis patients.
Figure 4.
Figure 4.. Distribution of dialysis patients according to chronic kidney disease etiology.
Figure 5.
Figure 5.. Prevalence of patients with positive serology for hepatitis B and C and HIV.
Figure 6.
Figure 6.. Type of vascular accesses used for hemodialysis.
Figure 7.
Figure 7.. Distribution of patients according to dialysis modality.
Figure 8.
Figure 8.. COVID-19 mortality rate, case-fatality rate, and strategy adopted to isolate cases.
See this image and copyright information in PMC

References

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