van de Walle, Etienne; Kekovole, John - 1986
censuses and demographic surveys particularly the World Fertility Survey to ascertain trends in fertility and mortality. The … that fertility has increased in some countries--Kenya and Cameroon; has remained almost stable in Benin, Ivory Coast and ….e. breastfeeding and post-partum abstinence; and a reduction in the level of sterility. As far as trends in mortality are concerned …