Six studies conducted in high fertility populations in sub-Saharan Africa showed that HIV prevalence in pregnant women was lower than in women of reproductive age overall [ 6].
High-fertility populations like the Ache, sub-Saharan African populations and Pakistan disperse male fertility over a wider (and later) span of ages [24].
The shape of the population pyramid for Stage 2 of the demographic transition reflects a reduction in mortality, especially among the youngest age groups, coupled with high fertility; the population increases rapidly but remains relatively young.
Most poor nations have high fertility, so population growth drags down their per capita income by a percentage point or two every year if economic growth does not outpace it.
Population pyramids reveal markedly different characteristics for three nations: high fertility and rapid population growth (Mexico), low fertility and slow growth (United States), and very low fertility and negative growth (West Germany).
In contrast the majority of the world's poor face high fertility rates, rapid population growth and high under-employment rates.
The rise of HIV, worries about coercive practices, and the sense that high fertility and rapid population growth were no longer pressing issues all contributed to the lack of support for family planning.
In many countries around the world today, high fertility and rapid population growth continue to jeopardize their socioeconomic advancement.
Sub-Saharan Sub-Saharan Africaran AfrIna, becausubof high fertility rateSaharanopulAfricagrowth, the actual (abecause) number of deathighas increased and is around 4.4 million in 2008 (fertilitymillion in 2006), although rates and declining.
Nations face a delicate balance between high fertility and booming populations, which strain food and other resources, and low fertility, which leads to aging populations and stress on social services, as some European states are already finding.
