Figure 2.

Percentage of subjects endorsing between 0 and 4 of the following sleepiness items (I am sleeping or dozing most of the time—day or night, I sit around half-asleep, I sleep or nap more during the day, and I sleep longer during the night.) at 1 month and 1 year following injury. Trauma controls are compared with subjects with traumatic brain injury divided into injury-severity subgroups (≤ 24 hour, 1–6 days, 7–13 days, ≥ 14 days), based on time from injury until commands were consistently followed (p < .001 at 1 month; p < .01 at 1 year).