JANUARY 15, 2005
VOLUME 2 NO. 1
 

U of T study finds gender bias in heart drug ads

Middle-aged white men are over-represented — and chances are
it affects prescribing habits


Are women's heart problems being neglected because doctors are influenced by images in ads? A group of University of Toronto researchers thinks so. They spent nearly two years combing through American medical and cardiovascular journals, analysing advertisements for cardiovascular drugs and taking note of the age, gender and race of the people depicted in them. The research appears in the November issue of the Journal of Evaluation in Clinical Practice.

Primary investigator Dr Angela Cheung, a professor in U of T's Department of Medicine and associate director of the Women's Health Program at Toronto General Hospital, knew that women with cardiovascular disease were often misdiagnosed or treated less aggressively than men, and she thought advertisements might have something to do with it.

"Studies have shown that women are referred later and less frequently for cardiac catheterization and for coronary artery bypass surgery," explained Dr Cheung in a statement. "There are also gender-based differences in the use of aspirin, beta-blockers and thrombolytic therapies."

"We know from other literature that ads do play a role in educating doctors, and so we are wondering if that can affect people's perceptions," she adds in a phone interview.

After examining 919 cardiovascular drug ads in journals published between January 1996 and June 1998, the researchers found that 80% depicted male patients.

WRONG ON TWO COUNTS
Dr Cheung and her team also found that the ads were misleading about both race and gender. The women depicted were younger than the men, even though heart disease affects women later in life than men, and the typical patient shown was a middle-aged white male, even though cardiovascular disease is the number one killer of blacks, who are much more likely than whites to have high blood pressure.

"A majority of women [with cardiovascular disease] are 60 years old and over and if you look at the onset of the disease it is 10 years later than men," explains Dr Cheung, highlighting the discrepancy between the advertisements and reality.

Dr Jonathan Bishinsky, an internist at York Central Hospital who's been treating cardiovascular disease for over 15 years, says he's certainly noticed a preponderance of men in ads for drugs treating the disease.

"There is the notion that we are under-diagnosing cardiovascular disease in women," says Dr Bishinsky. "If there were more women in advertisements, then it would increase the profile."

POWER OF THE IMAGE
Dr Dan Ezekiel, a family physician in Vancouver who regularly treats patients with heart disease, says he pays attention to journal advertisements and is surprised the percentage of women portrayed isn't even lower.

"I'm trying to think of a cardiovascular ad that has a woman in it and I can't think of any," he says. "The big trend in ads is to put a face to the drug. We see that with depression and osteoporosis drugs, and you therefore get a mental image in your head as to what that patient looks like."

"Having more women in the ads would make a difference," he adds.

CONFLICT OF INTEREST?
When asked why their selection of ads was so old, Dr Cheung explains she and her colleagues chose journals from the late 90s because strides were made in education about women and cardiovascular disease during that period, and this awareness should have had an effect on advertisements. She also says it was handy that complete collections of relevant journals were also available for those dates.

There was also a delay between completion of the study and publication. "Some journals didn't want to publish it," says Dr Cheung. "Possibly because journals have advertising as a source of income."

Dr Cheung hopes her team's work will have some effect on the ads and result in better understanding and treatment of women with cardiovascular disease.

"We're hoping that this study will spur drug companies to work to change the perception of cardiovascular disease," she says.

 

 

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