May 9, 2011 -- A new study sheds light on the differences in cancer prevalence and survival rates in gay, lesbian, and bisexual populations compared with heterosexuals.
It found that gay men had nearly twice the odds of being diagnosed with cancer as heterosexual males. In women there was no significant difference in cancer prevalence by sexual orientation. But cancer survivors who were lesbians were twice as likely to describe their health as fair or poor, and bisexual women were 2.3 times as likely compared with heterosexual females.
Prior to this point, there's been a lack of information about sexual orientation and detection rates and health status of cancer survivors, since cancer registries do not break out data by sexual orientation.
To create one of the earliest snapshots of this population, Boston researchers used data from the California Health Interview Survey. Done every two years by telephone, this large statewide survey asks participants about sexual orientation along with other questions about their health and medical history.
The analysis pooled data from surveys done in 2001, 2003, and 2005. The sample looked at adults who were age 18 to 65. It included nearly 70,000 heterosexual women along with more than 900 lesbians and 1,100 bisexual women. Among the men, more than 49,000 were heterosexual, nearly 1,500 were gay, and about 600 were bisexual.
The study is published in the May 9 online edition of Cancer.
Cancer survivors are people who are living with, through, or beyond a diagnosis of cancer. As of January 2007, the latest year with available numbers, the U.S. had an estimated 11.7 million cancer survivors.