Sentence examples for patterns of fertility from inspiring English sources

In a package on demography we show how patterns of fertility are changing astonishingly fast in Latin America, causing one country to offer a bribe to women who have a third child.

The data on parity and current fertility conforms to expected or typical patterns of fertility distributions of African populations.

All scenarios assume linear change in fertility levels while age patterns of fertility conform to those of the United Nations medium variant projections (UNPD 2016).

We begin this part of the analysis by providing some descriptive evidence that broadly characterises the patterns of fertility timing across groups of states and over time.

Furthermore, prevalence trends observed in public antenatal clinics may not mirror trends in prevalence in the general population, if there are changes in age at first sex or shifting patterns of fertility with respect to age [22].

This unique dataset provides an opportunity to examine the strength of reproductive isolation, the development and sex ratios of hybrid offspring, patterns of fertility and infertility, and polyploidization in hybrids all in the context of genetic divergence between parental species.

Chimpanzees, for example, have a similar pattern of fertility to people.

Experience from African data on recent births suggests that though they are frequently underreported the emerging age pattern of fertility is usually fairly accurate (United Nations 2004).

Similarly, the age pattern of fertility appears to be plausible showing a concave shape as expected with the exception of the 2007 census where a flat topped fertility pattern is observed.

This study focuses on consistency checks using average parity, age and sex distributions and age pattern of fertility as basis for evaluating fertility data derived from the four censuses.

Descriptive statistics are used to describe changes in the age pattern of fertility over time.