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. 2021 Apr;26(4):1299-1310.
doi: 10.1590/1413-81232021264.15922019. Epub 2019 Jun 29.

Underreporting of AIDS deaths in Brazil: linkage of hospital records with death certificate data

[Article in Portuguese, English]
Rondinelle Alves do Carmo  1 , Gabriela Moreira Policena  2 , Gizelton Pereira Alencar  3 , Elisabeth Barboza França  4 , Ana Luiza Bierrenbach  1
Affiliations
Free article

Underreporting of AIDS deaths in Brazil: linkage of hospital records with death certificate data

[Article in Portuguese, English]
Rondinelle Alves do Carmo et al. Cien Saude Colet. 2021 Apr.
Free article

Abstract
in English, Portuguese

This study investigated the underreporting of deaths due to Acquired Immunodeficiency Syndrome (AIDS) in Brazil, using the product of the linkage between the Mortality Information System (SIM) and the Hospital Information System (SIH) for the years 2008 to 2012. The hypothesis was that there were deaths recorded in the SIM that should have AIDS as the underlying cause of death, but that had been poorly classified. Many of the decedents had previous hospitalizations due to the illness. Underreported AIDS deaths were defined taking into account the coding rules of the International Classification of Diseases 10th Revision, in order to discriminate AIDS deaths from those due to other causes in people living with HIV / AIDS. In this period, 60,362 deceased had AIDS as the underlying cause, and we found another 2,671 (4.2%) as underreported causes. Underreported deaths increased the average AIDS mortality rate from 6.3/100,000 to 6.6/100,000. In conclusion, this study demonstrated that, through linkage in between SIH and SIM, it is possible to find underreporting of AIDS deaths in Brazil. These results serve as a warning for the need for actions that would promote a better certification of the causes of death among AIDS patients.

Este estudo investigou a subnotificação de óbitos por Síndrome da Imunodeficiência Adquirida (AIDS) no Brasil, utilizando o produto do pareamento entre o Sistema de Informação sobre Mortalidade (SIM) e o Sistema de Informação Hospitalar (SIH) para os anos de 2008 a 2012. A hipótese era de que houvesse óbitos registrados no SIM que deveriam ter a AIDS como causa básica da morte, mas que tinham causas mal classificadas. Muitos desses falecidos tiveram internações anteriores devido à doença. Os óbitos por AIDS subnotificados foram definidos levando-se em consideração as regras de codificação da Classificação Internacional de Doenças 10ª Revisão, com vistas a discriminar os óbitos por AIDS daqueles devido a outras causas em pessoas vivendo com HIV/AIDS. Nesse período, 60.362 falecidos tiveram a AIDS como causa básica, e encontramos outros 2.671 (4,2%) como causas subnotificadas. Os óbitos subnotificados aumentaram a taxa média de mortalidade por AIDS no período de 6,3/100.000 para 6,6/100.000. Em conclusão, este estudo demonstrou que, através do pareamento entre o SIH e o SIM, é possível encontrar subnotificação de óbitos por AIDS no Brasil. Esses resultados servem de alerta para a necessidade de ações que promovam uma melhor certificação das causas de óbitos entre os pacientes com AIDS.

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