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Some methodological considerations in the analysis of current status data.

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  • 1a Population Studies Center , Gadjah Mada University , Yogyakarta , Indonesia.

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Summary
This summary is machine-generated.

The study reveals that using the age of the youngest child to estimate postpartum abstinence periods is unreliable. This method is biased for recurrent events like childbirth, invalidating its use in fertility research.

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Area of Science:

  • Demography
  • Reproductive Health
  • Sociology

Background:

  • Child spacing is often achieved through postpartum sexual abstinence or prolonged breastfeeding.
  • Accurate measurement of postpartum infecundity is crucial for understanding fertility patterns.

Purpose of the Study:

  • To evaluate the validity of using the age of the youngest child as a proxy for estimating postpartum abstinence durations.
  • To compare this method with retrospective duration data.

Main Methods:

  • The study employed stochastic and deterministic models to analyze data on postpartum abstinence.
  • It compared the distribution of women abstaining by the age of their youngest child with distributions based on completed months of abstinence.

Main Results:

  • The tabulation of women abstaining by the age of their youngest child is heavily biased for recurrent events like childbirth.
  • This method is only comparable to retrospective duration data for non-recurrent events (e.g., first marriage).

Conclusions:

  • The current status distribution based on the age of the youngest child is an invalid method for estimating postpartum abstinence.
  • Researchers should avoid this technique due to its inherent biases in fertility studies.