This is a widely accepted view. There are books on the topic, along with informative websites to help churches fix this problem, and there are occasionally surveys cited to demonstrate the severity. These facts may matter to religious leaders for a variety of reasons, but for family demographers, there is a very specific significance to gender imbalances. Religious communities often form semi-closed dating and marriage markets: people of a given faith often prefer to be coupled with people of the same faith. If there are large gender imbalances, with far more men or far more women, then young people may have difficulties forming families. However, due to sample sizes and to keep this piece manageable in length, I focus just on Christian groups.
U.S. population: male to female ratio, by state 2017
The Male to Female Ratio of America by Age Range - Overflow Data
In anthropology and demography , the human sex ratio is the ratio of males to females in a population. More data are available for humans than for any other species, and the human sex ratio is more studied than that of any other species, but interpreting these statistics can be difficult. Like most sexual species, the sex ratio in humans is approximately In humans, the natural ratio between males and females at birth is slightly biased towards the male sex, being estimated to be about 1.
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It is a common understanding in scientific research that the male species, in general, are frailer and experience higher rates of mortality across their lifespans than females. Now, there is evidence that among humans the frail male also extends in utero. Ryan Schacht, assistant professor of anthropology at East Carolina University, in new research being published by Nature Scientific Reports , has identified that fewer male babies are born in the United States during periods of environmental and ecological stress.