Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Predictive capacity of subjective ratings of sleepiness on adverse driving on drowsiness event. Upper Panel—KSS, LFA, and all SSQ items (except head dropping) predict severe driving events (■emergency brake), (A), with reduced predictive capacity for moderate driving events (■lane deviation), (B). Lower Panel - KSS, LFA, and all SSQ items predict severe (■JDS 4.5+), (C) and moderate (■JDS ≥ 2.7), (D) drowsiness events.
