On the distribution of the menstruating interval
Yadava, R.C.; Pandey, R.; Tiwari, A.K.
Biodemography and Social Biology 55(1): 1-11
2009
ISSN/ISBN: 1948-5565 PMID: 19835097 DOI: 10.1080/00377660903054605Document Number: 208845
This article is concerned with the development of some stochastic models better suited to describe the observed distributions of the menstruating interval relating to last closed-birth interval of two types of females. In this context, two models suited for couples using or not using contraception have been proposed. In the first case, the model assumes a constant conception rate (analogous to the constant hazard rate in the life-testing problem) over time whereas the second case assumes a time-dependent form of the conception rate. The models have been applied to the data collected in a survey conducted in Lucknow, and estimates of conception rate for the two types of females have also been obtained.