https://www.splcenter.org/fighting-hate/intelligence-report/2015/10-anti-gay-myths-debunked
MYTH # 4
LGBT people don't live nearly as long as heterosexuals.
THE ARGUMENT
Anti-LGBT organizations, seeking to promote heterosexuality as the healthier "choice," often offer up the purportedly shorter life spans and poorer physical and mental health of gays and lesbians as reasons why they shouldn't be allowed to adopt or foster children.
THE FACTS
This falsehood can be traced directly to the discredited research of Paul Cameron and his Family Research Institute, specifically a 1994 paper he co-wrote entitled "The Lifespan of Homosexuals." Using obituaries collected from newspapers serving the gay community, he and his two co-authors concluded that gay men died, on average, at 43, compared to an average life expectancy at the time of around 73 for all U.S. men. On the basis of the same obituaries, Cameron also claimed that gay men are 18 times more likely to die in car accidents than heterosexuals, 22 times more likely to die of heart attacks than whites, and 11 times more likely than blacks to die of the same cause. He also concluded that lesbians are 487 times more likely to die of murder, suicide, or accidents than straight women.
Remarkably, these claims have become staples of the anti-gay right and have frequently made their way into far more mainstream venues. For example, William Bennett, education secretary under President Reagan, used Cameron's statistics in a 1997 interview he gave to ABC News' "This Week."
However, like virtually all of his "research," Cameron's methodology is egregiously flawed — most obviously because the sample he selected (the data from the obits) was not remotely statistically representative of the LGBT population as a whole. Even Nicholas Eberstadt, a demographer at the conservative American Enterprise Institute, has called Cameron's methods "just ridiculous."
Anti-LGBT organizations have also tried to support this claim by distorting the work of legitimate scholars, like a 1997 study conducted by a Canadian team of researchers that dealt with gay and bisexual men living in Vancouver in the late 1980s and early 1990s. The authors of the study became aware that their work was being misrepresented by anti-LGBT groups, and issued a response taking the groups to task.
