The degree of long-term (7.41 years postinjury) impairment of disability aw
areness was quantified in 63 adults with closed-head injuries as the differ
ence between self-ratings and staff ratings on the Scales of Independent Be
havior. Impaired awareness was significantly associated with lower vocation
al and residential status, maladaptive behavior, greater distractibility, a
nd increased perseveration. Impaired awareness is directly proportional to
duration of posttraumatic amnesia and general memory. Impaired awareness of
disability appears to be a consequence of a general cognitive impairment r
ather than a specific deficit.