Objective:To assess the completeness and reliability of the Information System on Live
Births (Sinasc) data.Methods:A cross-sectional analysis of the reliability and completeness of Sinasc's data
was performed using a sample of Live Birth Certificate (LBC) from 2009, related to
births from Campinas, Southeast Brazil. For data analysis, hospitals were grouped
according to category of service (Unified National Health System, private or
both), 600 LBCs were randomly selected and the data were collected in LBC-copies
through mothers and newborns' hospital records and by telephone interviews. The
completeness of LBCs was evaluated, calculating the percentage of blank fields,
and the LBCs agreement comparing the originals with the copies was evaluated by
Kappa and intraclass correlation coefficients.Results:The percentage of completeness of LBCs ranged from 99.8%-100%. For the most items,
the agreement was excellent. However, the agreement was acceptable for marital
status, maternal education and newborn infants' race/color, low for prenatal
visits and presence of birth defects, and very low for the number of deceased
children.Conclusion:The results showed that the municipality Sinasc is reliable for most of the
studied variables. Investments in training of the professionals are suggested in
an attempt to improve system capacity to support planning and implementation of
health activities for the benefit of maternal and child population.
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