- Nov 3, 2010
That suggests they may need targeted interventions to prevent cancer, the researchers said, but more studies are needed to answer lingering questions. For example, are gay men more likely to be diagnosed with cancer than straight men? Or, are they just more likely to survive if they do get cancer?
"A lack of hard data" on how sexual orientation affects the risk of cancer is "one of the biggest problems we have," said Liz Margolies, executive director of The National LGBT Cancer Network. Margolies, who was not involved in the research, told Reuters Health, "It's critical that we know that for funding and for program planning."
As a step toward addressing the lack of data, researchers looked at three years of responses to the California Health Interview survey, which included more than 120,000 adults living in the state.
Among other health-related questions, participants were asked if they had ever been diagnosed with cancer and whether they identified as gay, lesbian, bisexual, or straight.
The findings are published in the journal Cancer.
Out of 51,000 men, about 3,700 said they had been diagnosed with cancer as an adult. While just over 8 percent of gay men reported a history of cancer, that figure was only 5 percent in straight men. The disparity could not be attributed to differences in race, age, or income between gay and straight men.
About 7,300 out of 71,000 women in the study had been diagnosed with cancer, but overall cancer rates did not differ among lesbian, bisexual, and straight women.
However, among women who were cancer survivors, lesbian and bisexual women were more likely to report fair or poor health than straight women.