of .05 was used. Multivariate analyses were not conducted be- cause of the small sample sizes and large number of variables.
RESULTS
A total of 130 children with mild TBI agreed to participate in the study, 72 of whom were allocated to the intervention group, seen 1 week after injury, and 58 to the nonintervention group, seen 3 months
after injury only. The numbers of participants in these groups were unequal because fewer of those
allocated to the nonintervention group agreed to par ticipate when contacted 3 months after injury. The control groups consisted of 96 children, 49 allocated to the intervention control group and 47 to the non intervention control group. These groups were well matched in terms of age, education, IQ, socioeco nomic status,36 and, for the 2 mild TBI groups, PTA duration, which ranged in both groups from a few seconds up to 24 hours. Loss of consciousness was also similar in both groups, with 96% of those in theTBI intervention group and 95% of those in the non intervention TBI group having loss of consciousness 5 minutes and 50% 1 minute. One child in the intervention group had a loss of consciousness20 minutes, and 1 from the nonintervention group had a loss of consciousness of 10 to 15 minutes.
Sixty-one (85%) of the original group of 72 children with mild TBI and 45 (92%) of the 49 controls seen 1 week after injury returned for reassessment 3 months after injury. Another 58 children with mild TBI and 47 controls were assessed for the first time 3 months after injury. Demographic details and measures of injury severity, premorbid psychological adjustment, and life stressors for these groups are set out in Table 1. There were no significant differences between
groups on any of these variables. To evaluate the impact of the intervention, this article focuses on the groups assessed 3 months after injury. From Table 2, it is evident that both the mild TBI groups had a higher percentage of children with previous head injury, other psychological or neuro logic problems, or learning difficulties than controls.
However, none of the differences between mild TBI and control intervention and nonintervention groups was statistically significant.Most children with mild TBI were injured in falls (40%), cycling accidents (22%), or sporting injuries
(21%). Only 7% were injured in motor vehicle acci-