`` `` this paper presents a microanalytic stochastic model of human reproduction with special features for use in examining reproduction in high mortality populations . the model builds on prior work by including ( a ) a beta distribution for fecundability , permitting variations between women and during a woman 's childbearing years , ( b ) fetal deaths and stillbirths that vary with a woman 's age , and ( c ) sterility that varies as a function of two random probability distributions . new to this model is inclusion of a weibull survival function for infant and child mortality and a model schedule of postpartum amenorrhoea that depends on the length of breastfeeding . '' ''
C0015927
fetal death
C0595939
stillbirth