Casterline J B
Brown University, Providence, RI 02912.
Stud Fam Plann. 1989 Mar-Apr;20(2):81-95.
Estimates of levels and differentials of pregnancy loss are presented for 40 developing countries participating in the World Fertility Survey (WFS) program. Judged against agreed-upon levels of spontaneous loss in human populations, WFS surveys measured from 50 to 80 percent of recognizable losses. The coverage of induced abortions appears to be much worse. Consistent with data from other sources and settings, the probability of loss is strongly correlated with maternal demographic characteristics: age, pregnancy order, pregnancy spacing, and pregnancy loss history. Despite incomplete coverage, the WFS data on pregnancy loss provide considerable, and largely unexploited, insight on the dynamics of the reproductive career.
本文给出了参与世界生育率调查（WFS）项目的40个发展中国家的妊娠丢失水平及差异估计值。与公认的人类群体自然丢失水平相比，WFS调查测出了可识别丢失的50%至80%。人工流产的覆盖率似乎要低得多。与其他来源和环境的数据一致，丢失概率与母亲的人口统计学特征密切相关：年龄、妊娠顺序、妊娠间隔和妊娠丢失史。尽管覆盖不完整，但WFS关于妊娠丢失的数据为生殖生涯动态提供了大量且基本未被利用的见解。
