查看文章

Using the 100-Car Study database, two analyses were conducted: re-calculation of odds ratios (ORs) using a case-crossover baseline, and characterization of secondary task engagement in real-world environments. First, ORs were recalculated for drowsiness, secondary task engagement, and total time eyes-off-road (TEOR) using conditional logistic regression. The results suggested that drowsiness (OR 38.7; CI 26.4–56.8), tasks with> 2 eyeglances away from the forward roadway or> 2 button presses (OR 2.3; CI 1.3–3.1), and tasks with 1-2 eyeglances and/or 1-2 button presses (OR 1.4; CI 1.1-1.7) significantly increased crash/near-crash risk. The results also indicated that total TEOR of 2 s or greater during a 6-second task period increased crash/near-crash risk (OR 1.6; CI 1.3–2.0) and a 3 s or greater total TEOR over a 15-second task period significantly increased crash/near-crash risk (OR 1.3; CI 1.1-1.6 …