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  • Title: Using a Birth Defects Surveillance Program to Enhance Existing Surveillance of Stillbirth.
    Author: Duke W, Alverson CJ, Evans SP, Atkinson M, Ailes EC.
    Journal: J Registry Manag; 2022; 49(1):17-22. PubMed ID: 37260619.
    Abstract:
    OBJECTIVE: Fetal death certificates (FDCs) are the main source of stillbirth surveillance data in the United States, yet previous studies suggest FDCs have incomplete ascertainment. The objectives of this analysis were (1) to evaluate whether the use of an existing birth defects surveillance program (the Metropolitan Atlanta Congenital Defects Program [MACDP]) to conduct surveillance on stillbirths enhances case ascertainment, and (2) to compare stillbirth prevalence estimates in metropolitan Atlanta using data from MACDP and FDCs, independently and combined, from 2009-2015. METHODS: Stillbirths were ascertained by MACDP and FDCs from 2009-2015. Capture-recapture methods were used to estimate the relative contributions of each data source. Prevalence estimates generated from each data source independently and combined were compared. RESULTS: There were 3,031 stillbirths ascertained by FDCs and MACDP in metropolitan Atlanta from 2009-2015. It was assumed that 35% of FDCs unlinked to MACDP were misclassified as stillbirth. Under this assumption, an estimated 2,610 total stillbirths occurred. Accounting for potential misclassification in the FDC, the prevalence rate for stillbirth was 6.9 per 1,000 live births plus stillbirths for stillbirths captured only in FDC, and 6.2 per 1,000 live births plus stillbirths for stillbirths caught only in MACDP. Using both sources combined for casefinding, the prevalence rate was 10.0 per 1,000 live births plus stillbirths for all years combined. CONCLUSIONS: Expanding certain birth defects surveillance programs to conduct surveillance on stillbirths could potentially enhance existing surveillance data on stillbirths when linked to FDCs.
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