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Epidemiologia e Serviços de Saúde

Print version ISSN 1679-4974On-line version ISSN 2237-9622

Abstract

AGUIAR, Fernanda Pinheiro et al. Analysis of the application of a deterministic routine for identifying multiple pregnancies on SINASC, Brazil. Epidemiol. Serv. Saúde [online]. 2020, vol.29, n.2, e2018454.  Epub May 08, 2020. ISSN 2237-9622.  https://doi.org/10.5123/s1679-49742020000200001.

Objective:

to evaluate the application of a deterministic routine for identifying multiple pregnancies on the Brazilian Live Birth Information System (SINASC).

Methods:

SINASC data deduplication and linkage with the mortality database (fetal deaths) for Rio de Janeiro state for the period 2007-2008; we used a deterministic routine, using a key based on SINASC maternal and birth information, complemented by manual review.

Results:

of the 433,874 SINASC records, 9,036 (2.1%) were classified as multiple pregnancy newborns; after implementing the routine, we reclassified 385 records as twins, and 286 as singletons; accuracy of multiple pregnancy information on the SINASC database was high (sensitivity=95.8%; specificity=99.9%); applying the routine without the manual review process increased sensitivity by 4.2%, with no significant change of specificity.

Conclusion:

despite the accuracy of information regarding multiple pregnancy held on SINASC, we suggest the use of this routine as an option for improving classification of twins.

Keywords : Health Information Systems; Systems Integration; Health Evaluation; Pregnancy, Multiple.

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