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Susana Lozano-Esparza1, Oscar E Zazueta2, Juan Eugenio Hernández-Ávila3

  • 1Department of Epidemiology, University of Washington. Seattle, USA. lozanoesparza.s@gmail.com.

Salud Publica De Mexico
|April 19, 2022
PubMed
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Mexican death registries show high accuracy in identifying vital status for epidemiological studies. Both registries achieved 87.2% sensitivity and 99.3% specificity in a cohort follow-up.

Area of Science:

  • Public Health
  • Epidemiology
  • Biostatistics

Background:

  • Accurate vital status ascertainment is crucial for epidemiological cohort studies.
  • Mexican death registries are potential resources for mortality follow-up.

Purpose of the Study:

  • To evaluate the sensitivity and specificity of two Mexican death registries for identifying vital status.
  • To assess the utility of a publicly available record-linkage tool for this purpose.

Main Methods:

  • Cross-linking individual records from an epidemiologic cohort (n=581 deaths, 575 alive) to two Mexican mortality registries.
  • Utilizing a publicly available record-linkage tool for data matching.

Main Results:

  • Jointly, the two registries achieved a sensitivity of 87.2% (95% CI: 84.7, 90.2) and a specificity of 99.3% (95% CI: 98.2, 99.8).

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  • Significant discrepancies in the reported cause of death were noted in 10.8% of identified deaths.

    • Conclusions:

    • Mexican death registries demonstrate considerable value as a resource for mortality follow-up in epidemiological research.
    • Further validation and refinement of cause-of-death data are warranted.