To determine whether the Quick Medical Reference (QMR) program can imp
rove diagnosis or enhance learning among internal medicine residents,
we compared the diagnostic accuracy of the program with that of reside
nts at various training levels. The cases were from a prospective conv
enience sample of 40 patients admitted by 10 first-year residents (int
erns) and two chief medical residents. Four sets of differential diagn
oses were created for each case-the first set by an intern, the second
set by a chief resident, and the third and fourth sets by QMR, using
the findings of the interns and chief residents, respectively. The dia
gnostic accuracy of the interns and chief residents was significantly
greater than that of QMR. However, the chief residents indicated that
QMR did increase their understanding of disease processes and offered
educational value.