esearchers have reported contradictory findings re-R garding gender bias in diagnosis and treatment. The majority of findings indicate no such bias, but a sizable literature exists indicating that physicians make more diagnostic errors and initiate less-aggressive interventions with women than with men."? Recent changes, such a s making treatment protocols more sex-specific and including women in major drug trials, have reduced the disparity in treatment, but they have not eliminated it.14 l6According to an American Medical Association Task Force on Gender Disparities in Clinical Decision-Making, I7 the most common explanation for diagnostic errors observed with women patients is clinicians' readiness to attribute women's symptoms to "overanxiou~ness."~~ Many physicians might assume that the presence or absence of positive test results provides a reliable criterion for separating women with emotional or psychological disturbances from those with organic disease, but this assumption is not supported by research. Women continue to be diagnosed a s overanxious even in the presence of positive test results. l7 The difficulty that physicians experience in correctly evaluating the seriousness of women's symptoms, and evidence that the manner in which the symptoms are reported may be relevant for understanding treatment bias, prompted our investigation of communication differences. This essay reviews what is known about gender differences in communication and explores the extent to which those differences might be implicated in the reported gender bias in clinical diagnosis and treatment. We then address alternative explanations proposed to account for differences in diagnosis and treatment by sex and the research needed to clarify both the disparity and the role of communication in it.
REVIEW OF EVIDENCEPhysicians appear to make more effort to communicate with their female patients than male patients: they