BACKGROUND Federal legislation has recently been proposed to designate obst
etrician-gynecologists (OBGs) as primary care physicians. The institute of
Medicine identifies care unrestricted by problem or organ system as an esse
ntial characteristic of primary care. We examined the degree to which OBGs
in the state of Washington offer this aspect of primary care to their elder
ly patients by investigating the type and amount of nongynecologic care the
y provide.
METHODS Using 1994 Part B Medicare claims data for Washington residents, we
identified visits made by women aged 65 years and older to OBGs (N=10,522)
and 9 other types of specialists. Diagnoses were classified as in or out o
f the domain of care traditionally provided by each specialty, Visit volume
s, proportion of out of domain visits, and the frequency of diagnoses were
reported,
RESULTS Of the patient visits to obstetrician-gynecologists, 12.2% had nong
ynecologic diagnoses. The median percentage of nongynecologic visits for in
dividual OBGs was 6.7%. Patients who saw OBGs received 15.4% of their overa
ll health care from an OBG; patients who saw family physicians received 42.
9% of their total health care from a family physician.
CONCLUSIONS In 1994, a small amount of the care that Washington OBGs provid
ed to their elderly patients was for nongynecologic conditions. Studies are
needed to evaluate how the practices of OBGs have changed since the 1996 i
mplementation of a primary care requirement in obstetrics-gynecology reside
ncies, and if adopted, how legislation designating OBGs as primary care phy
sicians affects the health care received by elderly women.