Physician behavior as a determinant of utilization patterns: the case of abortion.

Health services utilization may be influenced by the structure of the health system and the behavior of health professionals as well as by the actions of individual patients. This research examines the responses of obstetricians toward women seeking abortion. The population for this study includes all obstetrician-gynecologists with any private practice in Maryland during 1975 (473). Each responding physician (443) was presented with a case history vignette describing, in a telephone interview, a woman who is pregnant and considering an abortion. The sociodemographic characteristics of the woman were systematically varied to determine effects of patient attributes on physicians' patient management decisions. Decisions to refer the patient or to participate personally in her care were found to be associated most strongly with the patients' financial resources. Three hundred and twelve obstetricians returned a mail questionnaire, probing their own attitudes and characteristics. Physicians' liberal or conservative attitudes toward expansion of reproductive health care services and their level of disturbance by the abortion procedure were also influential in these patient management decisions. Simultaneous examination of both patient and physician characteristics indicated that the former had the greater weight in accounting for referral decisions.