Search results
Results From The WOW.Com Content Network
The 2020 census showed that the gender ratio of mainland China has improved, with the male-to-female ratio reaching a new record low of 105.07. [17] This is the most balanced gender ration since the People's Republic of China began conducting censuses in 1953.
By one estimate, in 2024 China's population stood at about 1.408 billion, down from the 1.412 billion recorded in the 2020 census. [8] According to the 2020 census, 91.11% of the population was Han Chinese, and 8.89% were minorities. China's population growth rate is −0.15%, ranking 159th in the world.
In 2021, China's official census report showed a sex ratio of 112 male to 100 female births, compared to a global average of 105 or 106 male to 100 female births. This is down from a high of 118 male to 100 female births from 2002 to 2008. [2] The sex imbalance in some rural areas is higher, at 130 boys to 100 girls. [3]
Peak bone mass is the maximum amount of bone a person has during their life. [1] It typically occurs in the early 20s in females and late 20s in males. [ 2 ] Peak bone mass is typically lower in females than males, and is also lower in White people and Asians compared to black populations. [ 1 ]
The pelvis is, in general, different between the human female and male skeleton. [12] [13] Although variations exist and there may be a degree of overlap between typically male or female traits, [12] [13] the pelvis is the most dimorphic bone of the human skeleton and is therefore likely to be accurate when using it to ascertain a person's sex ...
A scanner used to measure bone density using dual energy X-ray absorptiometry. Bone density, or bone mineral density, is the amount of bone mineral in bone tissue.The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. [1]
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.
A wide variety of body composition measurement methods exist. The gold standard measurement technique for the 4-compartment model consists of a weight measurement, body density measurement using hydrostatic weighing or air displacement plethysmography, total body water calculation using isotope dilution analysis, and mineral content measurement by dual-energy X-ray absorptiometry (DEXA). [1]