Recovering records on cancer of the larynx from anonymous health information databases.

Autor:	Fernandes FT; Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministry of Economy - São Paulo (SP), Brazil., Silva DRME; Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministry of Economy - São Paulo (SP), Brazil.; Hospital A. C. Camargo, International Research Center, Group of Epidemiology and Statistics on Cancer - São Paulo (SP), Brazil., Campos F; Program of Environmental and Workers' Health, Institute of Collective Health, Universidade Federal da Bahia - Salvador (BA), Brazil., Santana VS; Program of Environmental and Workers' Health, Institute of Collective Health, Universidade Federal da Bahia - Salvador (BA), Brazil., Cuani L; Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministry of Economy - São Paulo (SP), Brazil., Curado MP; Hospital A. C. Camargo, International Research Center, Group of Epidemiology and Statistics on Cancer - São Paulo (SP), Brazil., Salvi L; Program of Environmental and Workers' Health, Institute of Collective Health, Universidade Federal da Bahia - Salvador (BA), Brazil., Algranti E; Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministry of Economy - São Paulo (SP), Brazil.
Jazyk:	angličtina
Zdroj:	Revista brasileira de epidemiologia = Brazilian journal of epidemiology [Rev Bras Epidemiol] 2021 Apr 02; Vol. 24, pp. e210011. Date of Electronic Publication: 2021 Apr 02 (Print Publication: 2021).
DOI:	10.1590/1980-549720210011
Abstrakt:	Objective: To develop a linkage algorithm to match anonymous death records of cancer of the larynx (ICD-10 C32X), retrieved from the Mortality Information System (SIM) and the Hospital Information System of the Brazilian Unified National Health System (SIH-SUS) in Brazil. Methodology: Death records containing ICD-10 C32X codes were retrieved from SIM and SIH-SUS, limited to individuals aged 30 years and over, between 2002 and 2012, in the state of São Paulo. The databases were linked using a unique key identifier developed with sociodemographic data shared by both systems. Linkage performance was ascertained by applying the same procedure to similar non-anonymous databases. True pairs were those having the same identification variables. Results: A total of 14,311 eligible death records were found. Most records, 10,674 (74.6%), were exclusive to SIM. Only 1,853 (12.9%) deaths were registered in both systems, representing true pairs. A total of 1,784 (12.5%) cases of laryngeal cancer in the SIH-SUS database were tracked in SIM with different causes of death. The linkage failed to match 167 (9.4%) records due to inconsistencies in the key identifier. Conclusion: The authors found that linking anonymous data from mortality and hospital records is a feasible measure to track missing records and may improve cancer statistics.
Databáze:	MEDLINE
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