Sensorimotor skills associated with motor dysfunction in children born extremely preterm.

BACKGROUND: Children born prematurely, despite being free of intellectual and sensorineural deficits, are at risk of motor dysfunction. AIM: To investigate the association of sensorimotor processing skills and Developmental Coordination Disorder (DCD) in "apparently normal" extreme preterm children. STUDY DESIGN: In a matched case-control study, 50 preterm children born less than 29 weeks or birthweight <1000 g, with an IQ>85 and no identified sensorineural disability, were assessed at 8 years of age along with 50 gender and birth date matched classroom controls born at full term. A battery of sensorimotor tests was administered, which examined visual-motor, visual perception, tactile perception, kinaesthesia, and praxis. RESULTS: For preterm children with DCD (n=21), significantly lower scores were found for the visual processing and praxis tests, with the exception of verbal command, in comparison to those 29 preterm children without DCD and term controls (median visual perception scores were 92, 96 and 108 respectively; design copying was 0.07, 0.46 and 0.95; constructive praxis was 0.09, 0.27 and 0.63; and sequencing praxis was 0.14, 0.73 and 0.96). There were no difference on the tactile sensitivity and kinaesthetic processing tests. CONCLUSIONS: Preterm children with DCD have difficulty with visual processing tasks. Praxis or motor planning poses a particular challenge for them. Motor dysfunction in extremely preterm children was related to poorer visual processing and motor planning and may relate to a cognitive processing problem.

Validity and responsiveness of the care and needs scale for assessing support needs after traumatic brain injury.

OBJECTIVE: To investigate the validity and responsiveness of the Care and Needs Scale (CANS), which was designed to assess support needs of people with traumatic brain injury (TBI). DESIGN: Two samples of community clients (n=38, n=30) were recruited to examine concurrent, convergent/divergent, and discriminant validity. The ability of the CANS to detect change over a 6-month period from the time of inpatient rehabilitation discharge (predictive validity and responsiveness) was investigated in a third sample of 40 rehabilitation inpatients. SETTING: Two Brain Injury Rehabilitation Units in Sydney, Australia. PARTICIPANTS: People (N=108) aged between 16 and 70 years admitted for rehabilitation after TBI. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The CANS, Supervision Rating Scale, FIM, Sydney Psychosocial Reintegration Scale, and Disability Rating Scale. RESULTS: Evidence for concurrent validity was shown with fair to moderate correlation coefficients between the CANS and measures of supervision, functional independence, and psychosocial functioning (absolute value, r(s)=.43-.68; P<.01). Support for convergent and divergent validity was provided by correlation coefficients that were higher for measures tapping similar constructs (absolute value, r(s)=46; P<.01) but lower for measures of dissimilar constructs (absolute value, r(s)=.07-.26; not significant). In addition, the CANS discriminated between levels of injury severity, functional independence, and overall functioning (P<.01). In terms of predictive validity and responsiveness, CANS scores at inpatient rehabilitation discharge predicted the participant's functioning 6 months later. CONCLUSIONS: These results show the CANS is a valid and responsive tool and, together with its previously shown reliability, is suitable for routine application in clinical and research practice.