Retention function of all segments of IUD usage: a compound distribution. |
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| Authors: | P T Liu L P Chow |
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| Institution: | Department of Population Dynamics, Johns Hopkins University, School of Hygiene and Public Health, Baltimore, Maryland 21205 U.S.A. |
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| Abstract: | The distribution of the all segments of IUD use consists of two components: the distribution of the length of each segment and the distribution of the number of segments. In this article, a compound distribution of all segments of IUD, developed by the authors is described. The distribution assumes that each segment of IUD use is a mixed exponential distribution and the number of segments experienced by women is a truncated Poisson distribution. This distribution is useful in estimating the demographic impact of an IUD and IUD program. |
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