Figure 1
From: On-road driving impairment following sleep deprivation differs according to age
(a) Mean ± standard errors across driving duration by condition and age group (dashed line = well-rested; solid line = sleep deprived; blue = younger adults; red = older adults), for number of lane deviations per 15-min. (b) Individual and group data for lane deviations/15 min across the whole drive showing interactions between age and condition. (c) Cumulative histogram of 11 adverse driving events in the younger adult group (blue) and three adverse driving events in the older adult group (red) across time in each condition. (d) Kaplan–Meier survival curve of the nine drive terminations in the younger adult group and three drive terminations in the older adult group across time in each condition. Instructor interventions and drive terminations occurred only in the sleep-deprived drives. **padj < 0.001, *padj < 0.05. False discovery rate corrections were used.
