Medical student competence in eliciting a history for "chronic fatigue"

We report an observational study of medical students' abilities in taking a complex history for which sleep disorders is one of several possible conditions.

Students are observed taking a focused history from a simulated patient whose chief complaint is "I am tired. I cannot get anything done." Nine groups of students (n = 360) completing the internal medicine core-clerkship were evaluated by one of three examiners. Students received full, partial, or no credit for each item on a uniform behavioral checklist, which included prompts for common medical and psychiatric disorders associated with chronic fatigue.

Observed means were lowest for items pertaining to sleep behaviors and head trauma. Fewer than half of the students inquired about whether or not the person had difficulty falling asleep at night, family history of sleep apnea, and frequency and length of naps. In contrast, the majority of students inquired about heart disease, metabolic disorders, the use of illicit drugs, alcohol consumption, and the taking of medications. Examiners accounted for a significant source of variance in scores; yet the station discriminated among top and bottom students as measured by the Objective Structured Clinical Examination (OSCE) overall. No statistically significant differences were observed on the basis of clerkship site, primary care versus traditional-track students, time of year, or gender.

A majority of students do not adequately cover issues relevant to sleep in contrast to other associated disorders when taking a focused history for chronic fatigue.