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The 2011 birth sex ratios for China and India are significantly above the mean ratio recorded in the United States from 1940 through 2002 (1.051); however, their birth sex ratios are within the 0.98–1.14 range observed in the United States for major ethnic groups over the same time period.
As of 2024, the global sex ratio at birth is estimated at 107 boys to 100 girls (1,000 boys per 934 girls). [15] By old age, [ clarification needed ] the sex ratio reverses, with 81 older men for every 100 older women; [ For this statistic to be meaningful, it is necessary to define the age range that is meant by "old age". ] across all ages ...
The gross reproduction rate (GRR) is the average number of daughters a woman would have if she survived all of her childbearing years, which is roughly to the age of 45, subject to the age-specific fertility rate and sex ratio at birth throughout that period. This rate is a measure of replacement fertility if mortality is not in the equation. [1]
Gender parity is a statistical measure used to describe ratios between men and women, or boys and girls, in a given population. Gender parity may refer to the proportionate representation of men and women in a given group, also referred to as sex ratio , or it may mean the ratio between any quantifiable indicator among men against the same ...
Sex ratio by country for total population. Blue represents more males than the world average of 1.07 males/females. (2020) The human sex ratio is the comparative number of males with respect to each female in a population. This is a list of sex ratios by country or region.
Standardized rates are a statistical measure of any rates in a population. These are adjusted rates that take into account the vital differences between populations ...
Replacement fertility is the total fertility rate at which women give birth to enough babies to sustain population levels, assuming that mortality rates remain constant and net migration is zero. [8] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [8]
Countries by birth rate. Birth rate, also known as natality, is the total number of live human births per 1,000 population for a given period divided by the length of the period in years. [1]
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