The research, published in BMJ Medicine, is the first large-scale study in the UK to estimate the number of people whose gender identity is different to their sex assigned at birth.
To do this, the team reviewed anonymised data from 7 million individuals aged 10 to 99 years, from IQVIA Medical Research Data, a UK primary care database, between 2000 and 2018.
Researchers looked for diagnostic codes that suggested patients had spoken to their GP about gender dysphoria (a state of stress or unhappiness that one’s gender does not match their sex at birth).
They found that overall, the number of people whose records suggested they were transgender was very low. However, there was nevertheless an increase over the last two decades – rising from about one in 15,000 in 2000, to just over one in 2,500 in 2018.
The number of individuals with a health record of being transgender increased in all age groups.
Rates were highest amongst people aged 16 to 29. In 2018, around one in every 2,200 people aged 16 to 29 were recorded as transgender.
https://www.ucl.ac.uk/news/2023/nov/increase-number-people-identifying-transgender-uk
Not really surprising given current social contagion, but as a study presumably it will be widely quoted to prove any number of things.
Not forgetting that "overall, the number of people whose records suggested they were transgender was very low"