This series of posts continues to look at some fairly technical articles which nevertheless may be of use to you if you are facing the prospect of the imminent death of a family member or friend.
This study, “Extent and determinants of error in doctors’ prognoses in terminally ill patients: prospective cohort study” by NA Christakis and EB Lamont first appeared in 2000 in the British Medical Journal [BMJ] in volume 320, pages 469-472, but is available freely without university library access.
This is a summary of their findings:
What is already known on this topic
Doctors’ prognostic estimates are a central element of both patient and physician decision making, especially at the end of life
Doctors’ prognostic estimates in their terminally ill patients are often wrong and usually optimistic
What this study adds
A prospective cohort study of 504 terminally ill patients and their 365 doctors found that only 20% of the doctors’ predictions were accurate: 63% were overoptimistic and 17% overpessimistic
Multivariate modelling showed that most types of doctors are prone to error, in most types of patients
The greater the experience of the doctor the greater the prognostic accuracy, but a stronger doctor-patient relationship is associated with lower prognostic accuracy.
As one commentator on the study put it,
Doctors may be reluctant to acknowledge that patients they know well are close to death. This can be compounded by the patient’s and family’s preference to keep hoping for the patient to live longer. Those of us who know our patients longer often become attached to them. We, too, hate to admit that death is near.