As a group, women who receive breast implants for cosmetic purposes have many demographic, lifestyle, and the differences in reproductive women in general, according to a study in today's issue of the Journal of the American Medical Association ( JAMA ). These mean differences ranging from the increase in alcohol consumption and the highest sexual activity to a greater use of hair dyes, might confuse studies that attempt to link breast implants to diseases, researchers say . But critics of the study say that the differences are exaggerated and were discarded as before confounders.
In their study, researchers led by epidemiologist Linda Cook at Fred Hutchinson Cancer Research Center in Seattle examined 3570 women, 80 of which had increased their breasts for cosmetic - no reconstruction - purposes, asking them a host of questions about alcohol and past use of oral contraceptives, smoking, sexual activity, and abortions. Researchers will examine the women to determine whether they had problems with their implants or suffered from diseases.
The researchers found that the 80 women who received breast enlargements were, on average, almost three times more likely than other women in the survey consumed seven or more drinks per week ; nine times more likely to have had at least 14 sexual partners; and more than twice as likely to have used birth control pills or have had an abortion. Physically, they were much less likely to be overweight. Failure to account for these differences could lead to over- or researchers underestimate the health risks of implants, say the researchers. The implants were widely blamed for the connective tissue disease: a pain syndrome, pain, fatigue and dry eyes and mouth, which fails to meet the existing criteria for classic rheumatoid diseases such as lupus
In an accompanying commentary. the JAMA study, Deborah J. del Junco, a health scientist at the Veterans Affairs Medical Center in Houston, said the study "brings us back full circle to the original question of the risks to long-term health -implant associated with breast surgery. " But other researchers, such as Gary Solomon, deputy director of the Department of rheumatic diseases in the hospital for Joint Diseases Orthopedic Institute in New York City, believe that confounding factors were excluded before. For example, in a clinical study of 680 women with cosmetic implants and reconstructive breast 1995 Solomon found that both groups of women were "very similar complaints and very similar lab results." These data "argue against these other [characteristics] as important," he said. Nevertheless, Cook said she hopes the new work will encourage researchers to consider other factors when assessing health risks of breast implants.
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