Collecting data on pregnancy loss: a review of evidence from the World Fertility Survey.

@article{Casterline1989CollectingDO,
  title={Collecting data on pregnancy loss: a review of evidence from the World Fertility Survey.},
  author={John B. Casterline},
  journal={Studies in family planning},
  year={1989},
  volume={20 2},
  pages={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… CONTINUE READING
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