Adams M M, Berg C J, McDermott J M, Gaudino J A, Casto D L, Wilson H G, McCarthy B J
World Health Organization Collaborating Center, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341-3724, USA.
Paediatr Perinat Epidemiol. 1997 Jan;11(1):78-92. doi: 10.1111/j.1365-3016.1997.tb00799.x.
We used 1.4 million fetal death and birth certificates filed in Georgia between 1980 and 1992 to construct 369,686 chains of two or more reproductive events occurring to the same woman. We evaluated these chains using both information on the certificates and information independently collected in interviews with 1311 women. Overall, 86.6% of the chains had the expected number of events, based on the certificate's information about previous pregnancies. Seventy-nine per cent of the chains had the expected number of events based on the maternal interviews. Consistency between the observed number of events in the chain and the number expected, based either on data from the certificates or from the maternal interviews, was greatest for chains with two or three events. Mothers born in Georgia were more likely to have complete chains than mothers born elsewhere. Among the 551,391 non-linked certificates, 48.7% were the mother's first birth, 40.2% were second or higher-order births to women whose previous pregnancy occurred before 1980, and 11.1% were second or higher-order births to women whose previous pregnancy occurred after 1980. Fetal death and livebirth certificates can be linked to construct pregnancy histories with reasonably low levels of underlinkage and overlinkage.
我们利用1980年至1992年间在佐治亚州登记的140万份胎儿死亡和出生证明，构建了369,686条由同一名女性经历的两个或更多生殖事件组成的链条。我们使用证明上的信息以及独立收集的对1311名女性的访谈信息对这些链条进行了评估。总体而言，根据证明上关于既往妊娠的信息，86.6%的链条具有预期的事件数量。根据产妇访谈，79%的链条具有预期的事件数量。对于有两个或三个事件的链条，链条中观察到的事件数量与基于证明数据或产妇访谈预期的数量之间的一致性最高。在佐治亚州出生的母亲比在其他地方出生的母亲更有可能拥有完整的链条。在551,391份未关联的证明中，48.7%是母亲的首次生育，40.2%是之前妊娠发生在1980年之前的女性的第二次或更高次生育，11.1%是之前妊娠发生在1980年之后的女性的第二次或更高次生育。胎儿死亡证明和出生证明可以关联起来，以构建具有合理低水平的未关联和过度关联的妊娠史。
