OBJECTIVE: To evaluate the accuracy of assisted reproductive technology (ART) reporting on the Massachusetts birth certificate and to explore the individual and hospital-level characteristics associated with ART reporting. DESIGN: Validity analysis of population-based data. SETTING: Live-birth deliveries by Massachusetts-resident mothers during 1997-2000. PATIENT(S): Live births and delivery mothers. INTERVENTION(S): The ART data maintained by the Centers for Disease Control and Prevention were linked with the live birth-infant death records in Massachusetts. Successfully linked records were used as the gold standard for ART-related deliveries in evaluating the validity of the ART information reported on the Massachusetts birth certificate. MAIN OUTCOME MEASURE(S): Sensitivity and specificity. RESULT(S): The sensitivity of ART reporting on the birth certificate was 27% and the specificity >99%. Sensitivity of ART reporting was higher among women with multiple deliveries (twins: 32%; triplets+: 43%) and preterm deliveries (36%). CONCLUSION(S): During the period evaluated, reporting of ART information on the birth certificate was incomplete, and ART births identified through the birth certificate were a biased sample of the population of ART births. Using delivery hospital data as the sole source of ART information for the standard birth certificate may yield inaccurate information.
OBJECTIVE: To evaluate the accuracy of assisted reproductive technology (ART) reporting on the Massachusetts birth certificate and to explore the individual and hospital-level characteristics associated with ART reporting. DESIGN: Validity analysis of population-based data. SETTING: Live-birth deliveries by Massachusetts-resident mothers during 1997-2000. PATIENT(S): Live births and delivery mothers. INTERVENTION(S): The ART data maintained by the Centers for Disease Control and Prevention were linked with the live birth-infant death records in Massachusetts. Successfully linked records were used as the gold standard for ART-related deliveries in evaluating the validity of the ART information reported on the Massachusetts birth certificate. MAIN OUTCOME MEASURE(S): Sensitivity and specificity. RESULT(S): The sensitivity of ART reporting on the birth certificate was 27% and the specificity >99%. Sensitivity of ART reporting was higher among women with multiple deliveries (twins: 32%; triplets+: 43%) and preterm deliveries (36%). CONCLUSION(S): During the period evaluated, reporting of ART information on the birth certificate was incomplete, and ART births identified through the birth certificate were a biased sample of the population of ART births. Using delivery hospital data as the sole source of ART information for the standard birth certificate may yield inaccurate information.
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