Validation of obstetric estimate of gestational age on US birth certificates

被引：55

作者：

Dietz, Patricia M. ^{[1
]}

Bombard, Jennifer M. ^{[1
]}

Hutchings, Yalonda L. ^{[1
]}

Gauthier, John P. ^{[3
]}

Gambatese, Melissa A. ^{[2
]}

Ko, Jean Y. ^{[1
]}

Martin, Joyce A. ^{[4
]}

Callaghan, William M. ^{[1
]}

机构：

[1] Ctr Dis Control & Prevent, Atlanta, GA 30333 USA

[2] Gotham Ctr, New York City Dept Hlth & Mental Hyg, Queens, NY USA

[3] Vermont Dept Hlth, Agcy Human Serv, Burlington, VT 05402 USA

[4] Natl Ctr Hlth Stat, Hyattsville, MD 20782 USA

来源：

AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY | 2014年 / 210卷 / 04期

关键词：

birth certificates; gestational age; preterm; validation; RECORDS;

D O I：

10.1016/j.ajog.2013.10.875

中图分类号：

R71 [妇产科学];

学科分类号：

100211 ;

摘要：

OBJECTIVE: The birth certificate variable obstetric estimate of gestational age (GA) has not been previously validated against GA based on estimated date of delivery from medical records. STUDY DESIGN: We estimated sensitivity, specificity, positive predictive value, negative predictive value and the corresponding 95% confidence intervals (CIs) for preterm delivery (<37 weeks' gestation) based on obstetric estimate using estimated date of delivery-based GA as the gold standard. Trained abstractors obtained the estimated date of delivery from the prenatal record (64.8% in New York City, and 94.6% in Vermont), or, when not available, from the hospital delivery record for 2 population-based samples: 586 live births delivered in New York City and 649 live births delivered in Vermont during 2009. Weights were applied to account for nonresponse and sampling design. RESULTS: In New York City, the preterm delivery rate based on estimated date of delivery was 9.7% (95% CI, 7.6-12.4) and 8.2% (95% CI, 6.3-10.6) based on obstetric estimate; in Vermont, it was 6.8% (95% CI, 5.4-8.4) based on estimated date of delivery and 6.3% (95% CI, 5.1-7.8) based on obstetric estimate. In New York City, sensitivity of obstetric estimate-based preterm delivery was 82.5% (95% CI, 69.4-90.8), specificity 98.1% (95% CI, 96.4-99.1), positive predictive value 98.0% (95% CI, 95.2-99.2), and negative predictive value 98.8% (95% CI, 99.6-99.9). In Vermont, sensitivity of obstetric estimate-based preterm delivery was 93.8% (95% CI, 81.8-98.1), specificity 99.6% (95% CI, 98.5-99.9), positive predictive value 100%, and negative predictive value 100%. CONCLUSION: Obstetric estimate-based preterm delivery had excellent specificity, positive predictive value and negative predictive value. Sensitivity was moderate in New York City and excellent in Vermont. These results suggest obstetric estimate-based preterm delivery from the birth certificate is useful for the surveillance of preterm delivery.

引用

页码：335.e1 / 335.e5

页数：5

共 7 条

[1]

American College of Obstetrics and Gynecology, 2009, OBSTET GYNECOLOGY, V101, P1

[2]

[Anonymous], 2003, GUIDE COMPLETING FAC

[3] Validation of Obstetric Estimate Using Early Ultrasound: 2007 California Birth Certificates [J].