Carol Hawley

Prevalence of traumatic brain injury amongst children admitted to hospital in one health district: a population-based study

There is a dearth of information regarding the prevalence of brain injury, serious enough to require hospital admission, amongst children in UK. In North Staffordshire, a register of all children admitted with traumatic brain injury (TBI) has been maintained since 1992 presenting an opportunity to investigate the incidence of TBI within the region in terms of age, cause of injury, injury severity and social deprivation. The register contains details of 1553 children with TBI, two-thirds of whom are male. This population-based study shows that TBI is most prevalent amongst children from families living in more deprived areas, however, social deprivation was not related to the cause of injury. Each year, 280 per 100,000 children are admitted for >or=24h with a TBI, of these 232 will have a mild brain injury, 25 moderate, 17 severe, and 2 will die. The incidence of moderate and severe injuries is higher than previous estimates. Children under 2 years of age account for 18.5% of all TBIs, usually due to falls, being dropped or non-accidental injuries (NAIs). Falls account for 60% of TBIs in the under 5 years. In the 10-15 age group road traffic accidents (RTAs) were the most common cause (185, 36.7%). These findings will help to plan health services and target accident prevention initiatives more accurately.

Parental stress and burden following traumatic brain injury amongst children and adolescents.

Primary objectives: To assess parental stress following paediatric traumatic brain injury (TBI), and examine the relationship between self-reported problems, parental stress and general health. Research design: Parents of 97 children admitted with a TBI (49 mild, 19 moderate, 29 severe) to North Staffordshire National Health Service Trust, and parents of 31 uninjured children were interviewed and assessed. Methods and procedures: Structured interviews were carried out with families, and parents assessed on the Parenting Stress Index (PSI/SF) and General Health Questionnaire (GHQ-12) at recruitment, and repeated 12 months later. Main outcomes and results: Forty parents (41.2%) of children with TBI exhibited clinically significant stress. Regardless of injury severity, parents of injured children suffered greater stress than control parents as measured by the PSI/SF (p = 0.001). There was a highly significant relationship between number of problems reported and level of parental stress (p = 0.001). Financial burden was related to severity of TBI. At follow-up, one third of parents of children with severe TBI scored S 18 on the GHQ-12, signifying poor psychological health. Conclusions: The parents of a child with serious TBI should be screened for abnormal levels of stress. Parental stress and family burden may be alleviated by improved information, follow-up and support.

Outcomes following childhood head injury: a population study

Objectives: To identify outcomes following head injury (HI) among a population of children admitted to one hospital centre and to compare outcomes between different severity groups. Methods: A postal follow up of children admitted with HI to one National Health Service Trust, between 1992 and 1998, was carried out. Children were aged 5–15 years at injury (mean 9.8), followed up at a mean of 2.2 years post-injury. Parents of 526 injured children (419 mild, 58 moderate, 49 severe) and 45 controls completed questionnaires. Outcomes were assessed using the King’s Outcome Scale for Childhood Head Injury (KOSCHI). Results: Frequent behavioural, emotional, memory, and attention problems were reported by one third of the severe group, one quarter of the moderate, and 10–18% of the mild. Personality change since HI was reported for 148 children (28%; 21% mild HI, 46% moderate, 69% severe). There was a significant relationship between injury severity and KOSCHI outcomes. Following the HI, 252 (48%) had moderate disability (43% mild HI, 64% moderate, 69% severe), while 270 (51%) made a good recovery (57% mild HI, 36% moderate, 22% severe). There was a significant association between social deprivation and poor outcome (p = 0.002). Only 30% (158) of children received hospital follow up after the HI. All children with severe disability received appropriate follow up, but 64% of children with moderate disability received none. No evidence was found to suggest a threshold of injury severity below which the risk of late sequelae could be safely discounted. Conclusions: Children admitted with mild HI may be at risk of poor outcomes, but often do not receive routine hospital follow up. A postal questionnaire combined with the KOSCHI to assess outcomes after HI may be used to identify children who would benefit from clinical assessment. Further research is needed to identify factors that place children with mild HI at risk of late morbidity.

Epidemiology of traumatic brain injury in children receiving intensive care in the UK

Aims: To describe the epidemiology of children with traumatic brain injury (TBI) admitted to paediatric intensive care units (PICUs) in the UK. Methods: Prospective collection of clinical and demographic information from paediatric and adult intensive care units in the UK and Eire between February 2001 and August 2003. Results: The UK prevalence rate for children (0–14 years) admitted to intensive care with TBI between February 2001 and August 2003 was 5.6 per 100 000 population per year (95% Poisson exact confidence intervals 5.17 to 6.05). Children admitted to PICUs with TBI were more deprived than the population as a whole (mean Townsend score for TBI admissions 1.19 v 0). The commonest mechanism of injury was a pedestrian accident (36%), most often occurring in children over 10. There was a significant summer peak in admissions in children under 10 years. Time of injury peaked in the late afternoon and early evening, a pattern that remained constant across the days of the week. Injuries involving motor vehicles have the highest mortality rates (23% of vehicle occupants, 12% of pedestrians) compared with cyclists (8%) and falls (3%). In two thirds of admissions (65%) TBI was an isolated injury. Conclusions: TBI in children requiring intensive care is more common in those from poorer backgrounds who have been involved in accidents as pedestrians. The summer peak in injury occurrence for 0–10 year olds and late afternoon timing give clear targets for community based injury prevention.

Behaviour and school performance after brain injury

Primary objective: To examine the relationship between behavioural problems and school performance following traumatic brain injury (TBI). Methods and procedures: Subjects: 67 school-age children with TBI (35 mild, 13 moderate, 19 severe) and 14 uninjured matched controls. Parents and children were interviewed at a mean of 2 years post-TBI. Teachers reported on academic performance and educational needs. Children were assessed using the Vineland Adaptive Behaviour Scales (VABS) and the Weschler Intelligence Scale for Children (WISC-III). Main outcomes and results: Two-thirds of children with TBI exhibited significant behavioural problems, significantly more than controls (p = 0.02). Children with behavioural problems had a mean IQ ∼ 15 points lower than those without (p = 0.001, 95% CI: 7–26.7). At school, 76%(19) of children with behavioural problems also had difficulties with schoolwork. Behavioural problems were associated with social deprivation and parental marital status (p ≤ 0.01). Conclusions: Children with TBI are at risk of developing behavioural problems which may affect school performance. Children with TBI should be screened to identify significant behavioural problems before they return to school.

Children's brain injury: a postal follow-up of 525 children from one health region in the UK.

Primary objectives : To follow-up a population of children admitted to one Hospital Trust with traumatic brain injury (TBI), and compare outcomes following mild TBI with outcomes following moderate or severe TBI. Research design : Population-based postal questionnaire survey. Methods and procedures : Questionnaires were mailed to parents of all 974 surviving children on a register of paediatric TBI admissions, 525 completed questionnaires were returned (56.2%). Most children (419) had suffered mild TBI, 57 moderate, and 49 severe. Main outcomes and results : Thirty per cent of parents received no information on post-injury symptoms, and clinical follow-up was limited. Statistically significant differences were observed between mild and moderate/severe groups for cognitive, social, emotional, and mobility problems. Nevertheless, ~20% of the mild group suffered from poor concentration, personality change and educational problems post-injury. Few schools (20%) made special provision for children returning after injury. Conclusions : Children can have long-lasting and wide-ranging sequelae following TBI. Information should be routinely given to parents and schools after brain injury.

Return to school after brain injury

Aims: To examine return to school and classroom performance following traumatic brain injury (TBI). Methods: This cross-sectional study set in the community comprised a group of 67 school-age children with TBI (35 mild, 13 moderate, 19 severe) and 14 uninjured matched controls. Parents and children were interviewed and children assessed at a mean of 2 years post injury. Teachers reported on academic performance and educational needs. The main measures used were classroom performance, the Children’s Memory Scale (CMS), the Wechsler Intelligence Scale for Children–third edition UK (WISC-III) and the Weschler Objective Reading Dimensions (WORD). Results: One third of teachers were unaware of the TBI. On return to school, special arrangements were made for 18 children (27%). Special educational needs were identified for 16 (24%), but only six children (9%) received specialist help. Two thirds of children with TBI had difficulties with school work, half had attention/concentration problems and 26 (39%) had memory problems. Compared to other pupils in the class, one third of children with TBI were performing below average. On the CMS, one third of the severe group were impaired/borderline for immediate and delayed recall of verbal material, and over one quarter were impaired/borderline for general memory. Children in the severe group had a mean full-scale IQ significantly lower than controls. Half the TBI group had a reading age ⩾1 year below their chronological age, one third were reading ⩾2 years below their chronological age. Conclusions: Schools rely on parents to inform them about a TBI, and rarely receive information on possible long-term sequelae. At hospital discharge, health professionals should provide schools with information about TBI and possible long-term impairments, so that children returning to school receive appropriate support.

Return to driving after head injury

OBJECTIVES To determine whether patients who return to driving after head injury can be considered safe to do so and to compare the patient characteristics of those who return to driving with those who do not. METHODS In a multicentre qualitative study 10 rehabilitation units collectively registered 563 adults with traumatic brain injury during a 2.5 year period. Recruitment to the study varied from immediately after hospital admission to several years after injury. Patients and their families were interviewed around 3 to 6 months after recruitment. A total of 383 (67.5%) subjects were interviewed within 1 year of injury, of whom 270 (47.6%) were interviewed within 6 months of injury. Main outcome measures were the presence or absence of driving related problems reported by drivers and ex-drivers, and scores on driving related items of the functional independence/functional assessment measure (FIM+FAM). RESULTS Of the 563 patients 381 were drivers before the injury and 139 had returned to driving at interview. Many current drivers reported problems with behaviour (anger, aggression, irritability; 67 (48.2%)), memory ( 89 (64%)), concentration and attention (39 (28.1%)), and vision (39 (28.1%)). Drivers reported most driving related problems as often as ex-drivers, main exceptions were epilepsy and community mobility. Current drivers scored significantly higher on the FIM+FAM (were more independent), than ex-drivers. The driving group had sustained less severe head injuries than ex-drivers; nevertheless, 78 (56.2%) current drivers had received a severe head injury. Few (61 (16%)) previous drivers reported receiving formal advice about driving after injury. CONCLUSIONS The existence of problems which could significantly affect driving does not prevent patients returning to driving after traumatic brain injury. Patients should be assessed for both mental and physical status before returning to driving after a head injury, and systems put in place to enable clear and consistent advice to be given to patients about driving.

Use of the functional assessment measure (FIM+FAM) in head injury rehabilitation: a psychometric analysis

OBJECTIVES The drive to measure outcome during rehabilitation after brain injury has led to the increased use of the functional assessment measure (FIM+FAM), a 30 item, seven level ordinal scale. The objectives of the study were to determine the psychometric structure, internal consistency, and other characteristics of the measure. METHODS Psychometric analyses including both traditional principal components analysis and Rasch analysis were carried out on FIM+FAM data from 2268 assessments in 965 patients from 11 brain injury rehabilitation programmes. RESULTS Two emergent principal components were characterised as representing physical and cognitive functioning respectively. Subscales based on these components were shown to have high internal consistency and reliability. These subscales and the full scale conformed only partially to a Rasch model. Use of raw item ratings, as opposed to transformed ratings, to produce summary scores for the two subscales and the full scale did not introduce serious distortion. CONCLUSION The full FIM+FAM scale and two derived subscales have high internal reliability and the use of untransformed ratings should be adequate for most clinical and research purposes in comparable samples of patients with head injury.

Predictors of positive growth after traumatic brain injury: a longitudinal study.

Primary objective: To investigate long-term positive psychological growth in individuals with traumatic brain injury (TBI) and to relate growth to injury characteristics and early outcomes. Research design: Longitudinal study. Method and procedure: Long-term follow-up of a group of TBI survivors recruited between 1991–1995. In 2004, 240 of the 563 original participants were invited to take part in a follow-up study. At follow-up, survivors completed the Positive Changes in Outlook Questionnaire (CiOP) along with a structured interview/questionnaire which permitted a Glasgow Outcome Scale (GOSE) score to be assigned. Results: One hundred and sixty-five TBI survivors completed both questionnaire and CiOP. One hundred and three (62%) participants had suffered severe TBI, 24 (15%) moderate and 38 (23%) mild. Mean length of follow-up was 11.5 years post-injury (range 9–25 years). On the GOSE at follow-up, 43 (26%) had severe disability; 72 (44%) moderate disability; and 50 (30%) good recovery. Scores on the CiOP indicated positive psychological growth in over half of the sample, as evidenced by agreement with items such as ‘I don’t take life for granted anymore’ and ‘I value my relationships much more now’. CiOP total scores did not correlate with any injury or early outcome variables. However, at long-term follow-up there was a negative correlation between positive growth and anxiety and depression. Conclusion: Survivors of mild, moderate and severe TBI showed evidence of long-term positive changes in outlook.