Background: Patients' understanding of their prognosis informs numerous med
ical and nonmedical decisions, but patients with cancer and their physician
s often have disparate prognostic expectations.
Objective: To determine whether physician behavior might contribute to the
disparity between patients' and physicians' prognostic expectations.
Design: Prospective cohort study.
Setting: Five hospices in Chicago, Illinois.
Patients: 326 patients with cancer.
Intervention: Physicians formulated survival estimates and also indicated t
he survival estimates that they would communicate to their patients if the
patients insisted.
Measurements: Comparison of the formulated and communicated prognoses.
Results: For 300 of 311 evaluable patients (96.5%), physicians were able to
formulate prognoses. Physicians reported that they would not communicate a
ny survival estimate 22.7% (95% CI, 17.9% to 27.4%) of the time, would comm
unicate the same survival estimate they formulated 37% (CI, 31.5% to 42.5%)
of the time, and would communicate a survival estimate different from the
one they formulated 40.3% (CI, 34.8% to 45.9%) of the time. Of the discrepa
nt survival estimates, most (70.2%) were optimistically discrepant. Multiva
riate analysis revealed that older patients were more likely to receive fra
nk survival estimates, that the most experienced physicians and the physici
ans who were least confident about their prognoses were more likely to favo
r no disclosure over frank disclosure, and that female physicians were less
likely to favor frank disclosure over pessimistically discrepant disclosur
e.
Conclusions: Physicians reported that even if patients with cancer requeste
d survival estimates, they would provide a frank estimate only 37% of the t
ime and would provide no estimate, a conscious overestimate, or a conscious
underestimate most of the time (63%). This pattern may contribute to the o
bserved disparities between physicians' and patients' estimates of survival
.