PT  - JOURNAL ARTICLE
AU  - Kenneth Rockwood
AU  - David B. Hogan
AU  - Christopher J. Patterson
ED  - ,
TI  - Incidence of and risk factors for nodding off at scientific sessions
AID  - 10.1503/cmaj.1041570
DP  - 2004 Dec 07
TA  - Canadian Medical Association Journal
PG  - 1443--1445
VI  - 171
IP  - 12
4099  - http://www.cmaj.ca/content/171/12/1443.short
4100  - http://www.cmaj.ca/content/171/12/1443.full
SO  - CMAJ2004 Dec 07; 171
AB  - We conducted a surreptitious, prospective, cohort study to explore how often physicians nod off during scientific meetings and to examine risk factors for nodding off. After counting the number of heads falling forward during 2 days of lectures, we calculated the incidence density curves for nodding-off episodes per lecture (NOELs) and assessed risk factors using logistic regression analysis. In this article we report our eye-opening results and suggest ways speakers can try to avoid losing their audience.