Biomedical subjects

H Gerry Taylor

Publications and source records attributed to H Gerry Taylor.

At least 37 records · Page 2Linked to original sources

PubMed2004

Attention function after childhood stroke.

We investigated attentional outcome after childhood stroke and orthopedic diagnosis in medical controls. Twenty-nine children with focal stroke lesions and individually matched children with clubfoot or scoliosis were studied with standardized attention and neuroimaging assessments. Stroke lesions were quite varied in location and commonly involved regions implicated in Posner's model of attention networks. Children with stroke lesions performed significantly more poorly regarding attention function compared with controls. Performance on the Starry Night, a test demanding alerting and sensory-orienting but not executive attention function, was significantly associated with lesion size in the alerting and sensory-orienting networks but not the executive attention network. Furthermore, earlier age at lesion acquisition was significantly associated with poorer attention function even when lesion size was controlled. These findings support the theory of dissociable networks of attention and add to evidence from studies of children with diffuse and focal brain damage that early insults are associated with worse long-term outcomes in many domains of neuropsychological function. In addition, these results may provide clues towards the understanding of mechanisms underlying attention in children.

Adolescent↗

PubMed2004

Long-term neuropsychological outcomes of very low birth weight: associations with early risks for periventricular brain insults.

Few follow-up studies of children with very low birth weight (VLBW, <1,500 g) have examined neuropsychological sequelae at later ages or neonatal risks as predictors of these outcomes. The present study assessed cognitive skills at mean age 16 years in 48 participants with <750 g birth weight, 47 with 750-1,499 g birth weight, and 52 term-born controls. Our major objectives were to delineate the long-term cognitive consequences of VLBW, and to determine if risks for periventricular brain insults accounted for variations in outcomes. Analysis revealed poorer outcomes for the <750 g group than for term-born controls on nearly all measures, with specific impairments in visual-motor skills, spatial memory, and executive function. Predictors of outcome for participants with VLBW included lower birth weight, lower weight for gestational age, and a longer period of oxygen requirement for chronic lung disease. The longer-term consequences of VLBW are consistent with expectations based on early brain pathology and suggest limitations to functional plasticity.

Adolescent↗

PubMed2004

Interpersonal stressors and resources as predictors of parental adaptation following pediatric traumatic injury.

The authors examined the relationship of preinjury interpersonal resources and stressors to parental adaptation following pediatric traumatic brain injury (TBI) and orthopedic injury. Parents of children with severe TBI (n = 53), moderate TBI (n = 56), and orthopedic injuries (n = 80) were assessed soon after injury, 6 and 12 months after the initial evaluation, and at an extended follow-up with a mean of 4 years postinjury. General linear model analyses provide support for both main and moderating effects of stressors and resources on parental adjustment. Support from friends and spouse was associated with less psychological distress, whereas family and spouse stressors were associated with greater distress. The results also reveal a marked decline in injury-related stress over follow-up for families in the severe TBI group who reported a combination of high stressors and high resources. The decline suggests that interpersonal resources attenuated long-term family burden because of severe TBI. The findings are discussed in terms of their implications for intervention following TBI.

Adaptation, Psychological↗

PubMed2004

School-age follow-up of children with childhood apraxia of speech.

PURPOSE: The primary aim of this study was to examine differences in speech/language and written language skills between children with suspected childhood apraxia of speech (CAS) and children with other speech-sound disorders at school age. METHOD: Ten children (7 males and 3 females) who were clinically diagnosed with CAS (CAS group) were followed from the preschool years (ages 4-6) to school age (ages 8-10) and were compared with children with isolated speech-sound disorders (S group; n = 15) and combined speech-sound and language disorders (SL group; n = 14). Assessments included measures of articulation, diadochokinetic rates, language, reading, and spelling. RESULTS: At follow-up, 8 of the children with CAS demonstrated improvement in articulation scores, but all 10 continued to have difficulties in syllable sequencing, nonsense word repetition, and language abilities. The children also exhibited comorbid disorders of reading and spelling. Group comparisons revealed that the CAS group was similar to the SL group, but not the S group during the preschool years. By school age, however, the SL group made more positive changes in language skills than the CAS group. CLINICAL IMPLICATIONS: These findings suggest that the phenotype for CAS changes with age. Language disorders persist in these children despite partial resolution of articulation problems. Children with CAS are also at risk for reading and spelling problems.

Apraxias↗

PubMed2004

Research on outcomes of pediatric traumatic brain injury: current advances and future directions.

The articles in this series demonstrate the diversity of research approaches needed to enhance understanding of the sequelae of traumatic brain injury (TBI) in children. Methods ranged from assessment of information processing deficits to evaluation of the construct validity of cognitive tests, tracking of changes in academic achievement after injury, and measurement of behavior and social outcomes. Several articles considered multiple influences on sequelae, including TBI severity, age at injury, time since injury, and preinjury child characteristics. The findings provide new information on injury consequences and the cognitive correlates of postinjury problems in behavior, achievement, and discourse processing. Continued progress requires additional study of relations between specific forms of neuropathology and outcomes, more comprehensive assessments of environmental influences, and greater efforts to monitor postinjury developmental changes. Other needs include more probing assessments of the effects of TBI on daily functioning and social-emotional outcomes, investigation of the specificity of sequelae and of sources of variability in outcome, and application of models that examine mechanisms of effect. This research will benefit clinical practice, clarify processes underlying children's behavior and learning problems, and advance knowledge of normal development.

Achievement↗

PubMed2004

The effect of neonatal maternal milk feeding on the neurodevelopmental outcome of very low birth weight infants.

The effect of maternal milk feeding during the first 4 weeks of life on neurodevelopmental outcomes at 20 months corrected age (CA) of singleton very low birth weight (VLBW) (< 1.5 kg) infants was examined. Ninety-eight VLBW infants born from January 1997 to February 1999 were followed to 20 months CA (mean birth weight, 1012 g; gestational age, 27 weeks). Maternal milk intake was calculated as both mean milliliters per kilogram per day and graded doses. Outcomes included the Bayley Mental Development Index (MDI) and Psychomotor Development Index (PDI), and rates of cerebral palsy (CP) and of overall neurodevelopmental impairment. After adjusting for neonatal and social risk, results revealed no effect of maternal milk on outcomes. MDI was predicted by both social and neonatal risk, and PDI, CP, and neurodevelopmental impairment were predicted by neonatal risk. In this small, high-risk group of VLBW infants, the effects of social and neonatal risk appear to outweigh any possible benefits of maternal milk on neurodevelopmental outcome.

Breast Feeding↗

PubMed2004

Behavioral outcomes and evidence of psychopathology among very low birth weight infants at age 20 years.

OBJECTIVE: Information on the mental health of very low birth weight (VLBW; <1500 g) children in young adulthood is sparse. We thus sought to examine gender-specific behavioral outcomes and evidence of psychopathology in a cohort of VLBW young adults at 20 years of age. METHODS: We compared a cohort of 241 survivors among VLBW infants who were born between 1977 and 1979 (mean birth weight: 1180 g; mean gestational age at birth: 29.7 weeks), 116 of whom were men and 125 of whom were women, with 233 control subjects from the same population in Cleveland who had normal birth weights (108 men and 124 women). Young adult behavior was assessed at 20 years of age with the Achenbach Young Adult Self-Report and the Young Adult Behavior Checklist for parents. In addition, the young adults and parents completed the ADHD Rating Scale for Adults. Gender-specific outcomes were adjusted for sociodemographic status. RESULTS: VLBW men reported having significantly fewer delinquent behaviors than normal birth weight (NBW) control subjects, but there were no differences on the Internalizing, Externalizing, or Total Problem Behavior scales. Parents of VLBW men reported significantly more thought problems for their sons than did parents of control subjects. VLBW women reported significantly more withdrawn behaviors and fewer delinquent behavior problems than control subjects. Their rates of internalizing behaviors (which includes anxious/depressed and withdrawn behaviors) above the borderline clinical cutoff were 30% versus 16% (odds ratio: 2.2; 95% confidence interval [CI]: 1.2-4.1). Parents of VLBW women reported significantly higher scores for their daughters on the anxious/depressed, withdrawn, and attention problem subscales compared with control parents. The odds ratios for parent-reported rates above the borderline-clinical cutoff among women for the anxious/depressed subscale was 4.4 (95% CI: 1.4-13.5), for thought problems was 3.7 (95% CI: 1.2-11.6), and for attention problems was 2.4 (95% CI: 1.0-5.5). There were no differences in the young adult self-report of attention-deficit/hyperactivity disorder (ADHD). Parents of VLBW men reported higher mean scores on the attention subtype of ADHD but not higher rates of ADHD. CONCLUSION: The increase in psychopathology among VLBW survivors in young adulthood indicates a need for anticipatory guidance and early intervention that might help to prevent or ameliorate potential psychopathology.

Adult↗

PubMed2004

Increased behavioral morbidity in school-aged children with sleep-disordered breathing.

OBJECTIVE: To assess whether sleep-disordered breathing (SDB), ranging from primary snoring to obstructive sleep apnea (OSA), is associated with increased behavioral morbidity. METHODS: A cross-sectional study was conducted of school-aged children in an urban, community-based cohort, stratified for term or preterm (<37 weeks' gestation) birth status. A total of 829 children, 8 to 11 years old (50% female, 46% black, 46% former preterm birth) were recruited from a cohort study. All children had unattended in-home overnight cardiorespiratory recordings of airflow, respiratory effort, oximetry, and heart rate for measurement of the apnea hypopnea index (number of obstructive apneas and hypopneas per hour). SDB was defined by either parent-reported habitual snoring or objectively measured OSA. Functional outcomes were assessed with 2 well-validated parent ratings of behavior problems: the Child Behavioral Checklist and the Conners Parent Rating Scale-Revised:Long. RESULTS: Forty (5%) children were classified as having OSA (median apnea hypopnea index: 7.1 per hour; interquartile range: 3.1-10.5), 122 (15%) had primary snoring without OSA, and the remaining 667 (80%) had neither snoring nor OSA. Children with SDB had significantly higher odds of elevated problem scores in the following domains: externalizing, hyperactive, emotional lability, oppositional, aggressive, internalizing, somatic complaints, and social problems. CONCLUSIONS: Children with relatively mild SDB, ranging from primary snoring to OSA, have a higher prevalence of problem behaviors, with the strongest, most consistent associations for externalizing, hyperactive-type behaviors.

Attention Deficit and Disruptive Behavior Disorder↗

PubMed2003

Long-term behavior problems following pediatric traumatic brain injury: prevalence, predictors, and correlates.

OBJECTIVE: To study identified rates of long-term behavior problems in children with traumatic brain injury (TBI) compared to children with only orthopedic injuries and risk factors and correlates for new behavior problems following TBI. METHODS: Sample included children with severe TBI (n = 42), moderate TBI (n = 41), and orthopedic injuries only (ORTHO;n = 50). The baseline assessment measured child behavior, adaptation, and neuropsychological, academic, and family functioning. Follow-ups were conducted at 6 and 12 months and at an extended follow-up a mean of 4 years after injury. RESULTS: The prevalence of caseness, defined as elevated behavior problem ratings, was higher in one or both TBI groups than in the ORTHO group at each follow-up (e.g., 36% of severe TBI group, 22% of moderate TBI group, and 10% of ORTHO group at extended follow-up). Most instances of postinjury-onset caseness at the extended follow-up were evident within the first year after TBI. Predictors were severe TBI, socioeconomic disadvantage, and preinjury behavioral concerns. Concurrent correlates included weakness in working memory and adaptive behavior skills, poorer behavior and school competence, and adverse family outcomes. CONCLUSIONS: Postinjury-onset caseness is persistent, risks are multifactorial, and correlates include child dysfunction and family sequelae.

Brain Injuries↗

PubMed2003

Sibling relationships and behavior after pediatric traumatic brain injury.

To evaluate long-term outcomes for siblings of children with traumatic brain injury (TBI), measures of sibling relationships and sibling behavior were collected an average of 4 years postinjury. The study sample included participants in a larger longitudinal study who had school-aged siblings, including 34 with severe TBI, 30 with moderate TBI, and 39 with orthopedic injuries not involving brain insult (ORTHO group). Group comparisons revealed more negative sibling relationships in families of children with TBI than in families of children in the ORTHO group, but only for mixed-gender sibling pairings. Behavior problems in children with TBI predicted both sibling relationships and sibling behavior problems. The findings indicate a need to monitor the adjustment of siblings and sibling relationships after TBI and to include siblings in family interventions.

Adaptation, Psychological↗

PubMed2002

A prospective study of short- and long-term outcomes after traumatic brain injury in children: behavior and achievement.

Longitudinal behavior and achievement outcomes of traumatic brain injury (TBI) were investigated in 53 children with severe TBI, 56 children with moderate TBI, and 80 children with orthopedic injuries not involving brain insult. Measures of preinjury child and family status and of postinjury achievement skills were administered shortly after injury. Assessments were repeated 3 times across a mean follow-up interval of 4 years. Results from mixed model analysis revealed persisting sequelae of TBI. Recovery of math skills was observed in the severe TBI group but only for children from less stressed families. Social disadvantage in children with TBI predicted more adverse behavioral sequelae and less favorable changes in some outcome measures. The findings suggest that pediatric TBI has long-term effects on behavior and achievement but that postinjury progress is influenced by the family environment.

Achievement↗

PubMed2002

A prospective study of short- and long-term neuropsychological outcomes after traumatic brain injury in children.

Longitudinal neuropsychological outcomes of traumatic brain injury (TBI) were investigated in 53 children with severe TBI, 56 children with moderate TBI, and 80 children with orthopedic injuries only. Neuropsychological functioning was assessed at baseline, at 6- and 12-month follow-ups, and at an extended follow-up (a mean of 4 years postinjury). Mixed model analyses revealed persistent neuropsychological sequelae of TBI that generally did not vary as a function of time postinjury. Some recovery occurred during the first year postinjury, but recovery reached a plateau after that time, and deficits were still apparent at the extended follow-up. Further recovery was uncommon after the first year postinjury. Family factors did not moderate neuropsychological outcomes, despite their demonstrated influence on behavior and academic achievement after childhood TBI.

Brain Injuries↗

PubMed2002

Sources of variability in sequelae of very low birth weight.

Few investigations have examined the specificity of sequelae of very low birth weight (VLBW, <1500 g) or sources of variability in outcome. To better understand the nature and determinants of outcome, we assessed neuropsychological and achievement skills at mean age 11 years in 62 children with <750 g birth weight, 54 with 750-1499 g birth weight, and 66 term-born controls. Distinct cognitive constructs were identified by factor analysis, and the three birthweight groups were compared on these constructs and on composite measures of achievement. Although the group with <750 g birth weight performed less well on all tests than term-born controls, group differences in a perceptual planning factor and in mathematics remained even when IQ was controlled, and deficits were more pronounced in mathematics than in reading. Results from structural equation modeling were consistent with the hypothesis that neuropsychological skills mediated the relationship between birth weight and achievement. The findings confirm the differential deficit hypothesis, support the need to consider multiple sources of variability in VLBW outcomes, and highlight the importance of neuropsychological constructs in developing an explanatory framework.

Child↗

PubMed2002

Social problem-solving skills in children with traumatic brain injury: long-term outcomes and prediction of social competence.

The effects of childhood traumatic brain injury (TBI) on social problem-solving were examined in 35 children with severe TBI, 40 children with moderate TBI, and 46 children with orthopedic injuries (OI). The children were recruited prospectively following injuries that occurred between 6 and 12 years of age. They were followed longitudinally, and ranged from 9 to 18 years of age at the time of the current study, which occurred on average 4 years post injury. They were administered a semi-structured interview used in previous research on social problem-solving to assess the developmental level of their responses to hypothetical dilemmas involving social conflict. Children in the severe TBI group defined the social dilemmas and generated alternative strategies to solve those dilemmas at the same developmental level as did children in the OI group. However, they articulated lower-level strategies as the best way to solve the dilemmas and used lower-level reasoning to evaluate the effectiveness of the strategies. After controlling for group membership, race, socioeconomic status, IQ, and age, children's social problem-solving, and particularly the developmental level of their preferred strategies for resolving conflicts, predicted parents ratings of children's social skills, peer relationships, aggressive behavior, and academic performance. The findings indicate that children with severe TBI demonstrate selective, long-term deficits in their social problem-solving skills that may help to account for their poor social and academic outcomes.

Adolescent↗

PubMed2002

Long-term executive function deficits in children with traumatic brain injuries: assessment using the Behavior Rating Inventory of Executive Function (BRIEF).

Long-term deficits in executive functions following childhood traumatic brain injuries (TBI) were examined using the Behavior Rating Inventory of Executive Function (BRIEF). Parents completed the BRIEF approximately 5 years postinjury as part of a prospective study of children injured between the ages of 6 and 12. The children were between 10 and 19 years of age at the time of the assessment, and included 33 with severe TBI, 31 with moderate TBI, and 34 with orthopedic injuries. Parents also rated children's adaptive functioning and completed several other measures of parent and family functioning. Children were administered a neuropsychological test battery that included several measures of executive functions. The groups displayed a significant linear trend in BRIEF scores, with the largest deficits in executive functions reported in children with severe TBI. BRIEF scores were related consistently across groups to a test of working memory, but not to other neuropsychological measures. BRIEF scores also predicted children's adaptive functioning and behavioral adjustment, as well as parent psychological distress, perceived family burden, and general family functioning. The findings indicate that TBI results in long-term deficits in executive functions that are related to children's psychosocial outcomes, as well as to parent and family functioning.

Brain Injuries↗

PubMed2002

Race as a moderator of parent and family outcomes following pediatric traumatic brain injury.

OBJECTIVE: To use data from a prospective, longitudinal study to determine whether race moderates parent and family outcomes during the first year following pediatric traumatic brain injuries (TBI). METHOD: Participants included 73 white and 18 black children with moderate to severe TBI and their families, and 32 white and 23 black children with orthopedic injuries only (OI) and their families. Assessments of parent and family functioning occurred shortly after injury (baseline) and at 6- and 12-month follow-ups. RESULTS: Race was a significant moderator of group differences in parental psychological distress and perceived family burden, by and large independent of socioeconomic status. The negative consequences of TBI were relatively less pronounced for parents of black children than for parents of white children at baseline, but became more pronounced at the two follow-ups. Black and white parents differed in preferred coping strategies, which may partially account for their different reactions to their children's injuries. CONCLUSIONS: The sociocultural factors associated with race may moderate the effects of pediatric TBI and OI on parents and families.

Adaptation, Psychological↗

PubMed2002

A prospective study of long-term caregiver and family adaptation following brain injury in children.

OBJECTIVE: We examined long-term differences in family adaptation following traumatic brain injuries (TBI) and orthopedic injuries. DESIGN: Families of children with severe TBI (n = 53), moderate TBI (n = 56), and orthopedic injuries (n = 80) were assessed at baseline, 6 months, and 12 months post injury and at an extended follow-up an average of 4.1 years post injury. Caregiver and family outcomes were examined using mixed model analysis. RESULTS: Patterns of adaptation over time varied across groups but indicated long-standing injury-related stress and burden in the severe TBI group. CONCLUSIONS: Severe TBI results in persistent caregiver stress for a substantial proportion of families.

Adaptation, Psychological↗

PubMed2002

Health-related quality of life of children and adolescents after traumatic brain injury.

OBJECTIVE: Relatively little is known about the longer-term impact of traumatic brain injury (TBI) on children's daily functioning, especially the broader outcome domain referred to as health-related quality of life (HRQL). The objective of the present study was to examine the nature and predictors of HRQL outcomes in children with moderate to severe TBI an average of 4 years postinjury. METHODS: The study used a concurrent cohort-prospective design involving postinjury assessments of 3 groups of traumatically injured children and their families including 42 with severe TBI, 42 with moderate TBI, and 50 with orthopedic injuries only. Parent and child perceptions of HRQL and child adaptive behavior measures were obtained along with parent descriptions of the child's health problems and use of medical and mental health services. Predictors included indices of injury severity, social factors, and ratings of preinjury child behavior problems and school performance. RESULTS: Based on parent report, adolescents who sustained severe TBI had lower HRQL related to overall psychosocial functioning and in the domains of behavior, mental health, general health, and family impact than adolescents who sustained orthopedic injuries only. Communication skills, daily living skills, and general adaptive functioning also were rated lower in the severe TBI group. In contrast to parent reports, adolescents with severe TBI did not rate their HRQL in most domains differently than did adolescents with orthopedic injuries. There were no group differences in frequency of persistent physical limitations. Sixty-seven percent of families of children with severe TBI used mental health counseling at some point after the injury. Risks for poorer HRQL outcomes were related to family social disadvantage and poorer preinjury child behavioral and academic functioning. CONCLUSIONS: Findings underscore the importance of using comprehensive measures of HRQL, along with traditional indicators of functional outcomes, when evaluating the longer-term impact of injuries in children. Identification of predictors suggests the need for close monitoring and intervention of high-risk children.

Adolescent↗