Sentence examples for change of fertility from inspiring English sources

For instance, regarding the impact on the working-age population, change of fertility rates during the period 2015 2025 will only become visible after 2035.

But little evidence to date has elucidated the effect of such changes on fertility.

Hence the study of demographic change requires knowledge of fertility (births), mortality (deaths), and migration.

From 2000 onwards, triplet birth rates decline again, mainly because of a change in policy of fertility clinics.

Moreover, changes to fertility desires of rural women would increase use of modern family planning more than would a household visit by a health worker to each rural woman.

The adjusted TFR estimate of women in richest wealth quintile (4.45) is an indication of change in fertility towards attainment of childbearing limit of 4 per woman in Malawi whereas, the poorest women's TFR (7.60) is still quite far from reaching the goal.

Sub-Saharan countries seem to remain more systematically outside any established and uniform process of fertility change.

In examining patterns of fertility change, it is also essential to explain why many men and women did not reduce their fertility.

Figure 2 displays the patterns of fertility change in Africa and African regions in comparison to other regions of the world.

For each independent variable, effects were estimated by both a main effect term (effect on initial fertility at the birth of the study child) and an interaction term with time (effect on rate of fertility change per year).

Today the anti-Malthusians point to signs of change: Fertility rates are crashing, even in poor countries.