A Stochastic Model for Estimating Adolescent Sterility

Nair, N. Unnikrishnan

doi:10.1002/bimj.19830250607

Cited by 4 publications

(1 citation statement)

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“…Hence Singh (1964) assumed type III pearsonian distribution and applied compound exponential distribution to estimate fecundability. Pathak and Prasad (1977) derived a simple model assuming two groups of females, one is mature and exposed to the risk of conception at the time of marriage and other is not, further Nair (1983a and1983b) and Agrafiotis (1986) extended this model. Singh (1982) have proposed a modified probability distribution for the waiting time to first conception taking into account premarital conceptions as well as the termination of study after a certain period of time.…”

Section: Introductionmentioning

confidence: 99%

Adolescent Sterility and Time required becoming Susceptible for Conception

Singh¹,

Singh²,

Tiwari³

2021

JSR

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The interval between marriage and first conception leading to a live birth plays an important role in determination of fertility of a female. One of the proximate determinants of natural fertility is fecundability, which is defined as the probability of conception that a married female will conceive during a month of exposure under unprotected cohabitations. Thus, waiting time to first conception is used to study the fecundability, adolescent sterility and the time required to become susceptible for conception. In this study, real data sets are used to check the suitability of the model and for estimation of parameters, maximum likelihood method has been used. Also an attempt has been made to show the relation ship between adolescent sterility and time require to be ready for the conception. Inverse relationships between them have been observed. The estimate of fecundability is 0.041 for the first data set (1969-70) and 0.057 for the second data set (2014-15) however the estimate of adolescent sterility is higher for first data set than second data set.

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Section: Introductionmentioning

confidence: 99%

Adolescent Sterility and Time required becoming Susceptible for Conception

Singh¹,

Singh²,

Tiwari³

2021

JSR

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A Stochastic Model for Estimating Adolescent Sterility Among Married Women

Agrafiotis

1986

Biometrical J

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S U r n W r yIn this paper a etouhaatiu model is pweented for the time fo the first conception of 8 cohort of married women. By identifying three etatee "adoleecent sterility", "ovulation" and "conaeived", into which the women can be placed, the model incorporatea individu81 differenwe for the women in the "adoleecent sterility" state whioh allow for the individuel characteristics to affect the conversion of these women into the "ovulation" state. Using straightforward probabilistic arguments it is shown that the model providee 8 close fit to recently publiehed data, comparee favorably,with previously published models on the same subject 8nd it ie ueeful for planning purposee in predicting future developments.

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