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Biomedical subjects

P L Hazell

Publications and source records attributed to P L Hazell.

16 recordsLinked to original sources
PubMed2004

Are foster parents reliable informants of children's behaviour problems?

BACKGROUND: Clinicians and researchers primarily measure behavioural and emotional problems of children in foster care from carer-report checklists. Yet the reliability of these reports is not adequately established. The present study examines one indicator of reliability for foster parent checklist reports: interrater agreement between foster parents and teachers. METHODS: Estimates of interrater agreement of foster parent and teacher responses on the cross-informant scales of the Child Behaviour Checklist (CBCL) and the Teacher Report Form (TRF) were obtained for 47 children in long-term foster care, aged 5-11 years. The estimates included calculations of agreement for continuous measures of problem behaviour, as well as for categorical determinations of clinically significant behaviour. RESULTS: Correlations of CBCL and TRF mean raw scores for the total problems (r = 0.71) and externalizing (r = 0.78) scales exceeded those described in prior studies of parent-teacher agreement, while correlation for internalizing scores (r = 0.23) was similar to that found previously. Teachers and foster parents demonstrated moderate to good agreement (kappa = 0.70-0.79) in identifying clinically significant total problems and externalizing problems, but poor agreement in identifying internalizing problems. CONCLUSIONS: Discrepancies between these and prior findings are discussed. For children in long-term foster care, foster parents or teachers may be used as informants for total problems, externalizing problems, and social-attention-thought problems. The reliability of data on internalizing symptoms is less certain.

Child↗
PubMed2002

Children with disruptive behaviours I: service utilization.

OBJECTIVE: To describe the demographic characteristics and patterns of service utilization in the Hunter region (NSW, Australia) of families caring for a child manifesting disruptive behaviour. METHODOLOGY: Families were eligible to participate in the survey if they had at least one child known to have one of the DSM-IV disruptive behaviour disorders, autistic spectrum disorders, behaviour problems associated with rarer forms of brain disease, brain injury or mild intellectual disability, or identified by school personnel as having significant behaviour problems. Families were recruited to the survey via schools, early education centres and clinical services. Parents completed a mail survey about demographic details and service utilization. RESULTS: In total, 1412 families responded to the survey, a participation rate of approximately 65%. The demographic characteristics of respondent families were similar to those of the regional population. A high proportion (85%) of children from respondent families were receiving treatment. Nearly half those children attending clinical services were attending two or more services. Approximately one-third each of the sample was attending public clinics, private clinics or a combination of both. Children were more likely to be treated by a paediatrician (64%) than a child psychiatrist (39%) or a psychologist (23%). Compared with a normative Australian sample, parents of children manifesting disruptive behaviour reported a high level of family stress. CONCLUSIONS: Families of children manifesting disruptive behaviour are a highly stressed group who often access several clinical services. Paediatricians make a significant contribution to the management of children with disruptive behaviours and need to be considered in service planning.

Adolescent↗
PubMed2002

Children with disruptive behaviours II: clinical and community service needs.

OBJECTIVE: To assist in health service planning by determining the perceived clinical and community service needs of families resident in the Hunter region who care for a child manifesting disruptive behaviour. METHODOLOGY: Families were eligible to participate in the survey if they had at least one child known to have one of the DSM-IV disruptive behaviour disorders, autistic spectrum disorders, behaviour problems associated with rarer forms of brain disease, brain injury or mild intellectual disability or were identified by school personnel as having significant behaviour problems. Families were recruited to the survey via schools, early education centres and clinical services. Parents completed a questionnaire, mailed to them by educational and/or clinical services. Parents were asked to prioritize options for improving or expanding clinical services and for reducing their treatment costs. RESULTS: A total of 1412 families responded to the survey. The highest-ranked clinical service options involved the expansion of mainstream community treatment services for children with disruptive behaviour problems and their families, with a particular emphasis on counselling services. Respite care and in-patient services were given relatively low priority. Subgroup analyses showed that disadvantaged and stressed families gave higher rankings to out of home options, such as respite care, in-patient care and subsidised holiday camps, than the aggregate sample. CONCLUSIONS: Enhancement of community based counselling services would meet the needs of the greatest number of participating families. Resource-intense residential services are required by a small but important group of families who experience disadvantage and high levels of stress.

Adolescent↗
PubMed2001

Validity of DSM-IVADHD subtypes in a nationally representative sample of Australian children and adolescents.

OBJECTIVE: To examine the discriminant validity of DSM-IV attention-deficit/hyperactivity disorder (ADHD) subtypes in a nationally representative sample of Australian youths. METHOD: The Diagnostic Interview Schedule for Children, including the symptom-specific impairment questions, was administered to 3,597 parents of children aged 6 to 17 years (response rate = 70%). Parents also completed questionnaires assessing children's emotional and behavioral problems and quality of life. RESULTS: Current DSM-IVADHD prevalence was 7.5% (6.8% with impairment) with inattentive types being more common than hyperactive-impulsive and combined types. ADHD was more prevalent among young males and was linked to social adversity, particularly for combined types. Compared with non-ADHD controls, all three ADHD subtypes were rated as having more emotional and behavioral problems and lower psychosocial quality of life, with combined types consistently rated the most impaired. Combined types received higher ratings than hyperactive-impulsive and inattentive types on externalizing behavior problems, disruption to family activities, and symptom-specific impairments with schoolwork and peer-related activities. Inattentive types were rated as having lower self-esteem, more social and school-related problems, but fewer externalizing problems than hyperactive-impulsive types. CONCLUSION: These findings support the view of DSM-IVADHD subtypes as distinct clinical entities with impairments in multiple domains.

Adolescent↗
PubMed1999

Factors associated with medium-term response to psychostimulant medication.

OBJECTIVE: To determine, in a sample of children first prescribed psychostimulants for attention deficit hyperactivity disorder (ADHD) between 1992 and 1994, which child and family factors, components of assessment, and aspects of management, were associated with a favourable treatment response, and with parental satisfaction with management. METHODOLOGY: Data were obtained by mail survey in March 1995. Factors considered potentially significant to treatment response and parental satisfaction were entered in a three-step hierarchical multiple regression equation. RESULTS: Responses were received from 788 (59.7%) of a possible 1319 parents. Items making a significant individual contribution to both improvement and parental satisfaction were: younger age of the child; amount of information provided by the clinician; shorter interval between review appointments; continued use of medication; and fewer treatment side effects. items contributing only to treatment response were: longer time taken over establishing the diagnosis; and the use of parent and teacher checklists in assessment. CONCLUSIONS: These data support early intervention for ADHD. A considered approach to assessment which includes the use of parent and teacher checklists is recommended. Providing adequate information to parents and children is essential. Review intervals of less than 6 months appear to foster better outcomes.

Adolescent↗
PubMed1999

Confirmation that Child Behavior Checklist clinical scales discriminate juvenile mania from attention deficit hyperactivity disorder.

OBJECTIVE: To determine whether boys meeting diagnostic criteria for juvenile mania and attention deficit hyperactivity disorder (mania-ADHD) may be distinguished from boys with ADHD alone on a range of clinical and family variables. METHODOLOGY: Boys aged 9-13 years with mania-ADHD (n = 25), ADHD alone (n = 99), or no psychiatric diagnosis (n = 27) were compared on parent and teacher report Child Behavior Checklists (CBCL) and Conners Questionnaires, self-report CBCLs, patterns of comorbidity, intellectual functioning, and family variables. RESULTS: Mania-ADHD subjects had significantly higher mean ratings than ADHD only subjects on the parent CBCL for the Withdrawn, Thought Problems, Delinquent Behavior and Aggressive Behavior scales and significantly higher rates of comorbid depression, anxiety and psychotic symptoms. Other variables did not distinguish the mania-ADHD and ADHD only groups. CONCLUSIONS: These data confirm previous research indicating that the CBCL may be used to assist in the clinical identification of manic children.

Adolescent↗
PubMed1999

Effortful and automatic information processing in boys with ADHD and specific learning disorders.

Boys with Attention Deficit Hyperactivity Disorder (ADHD, N = 50), Specific Learning Disorder (LD, N = 45), combined Specific Learning Disorder and ADHD (LD/ADHD, N = 25), and controls (N = 51) completed effortful and automatic information processing tasks based on Treisman and Gelade's (1980) "information integration theory". ADHD and LD/ADHD subjects did not differ from controls at baseline or under feedback and reward conditions, suggesting that they were investing similar levels of mental effort in the tasks. The LD group had a superior performance in the effortful task and an inferior performance in the automatic task compared with the other groups at baseline. The data suggest a potential method of distinguishing primary LD from learning difficulties that occur secondary to ADHD.

Adolescent↗
PubMed1997

Psychosocial sequelae of the 1989 Newcastle earthquake: II. Exposure and morbidity profiles during the first 2 years post-disaster.

BACKGROUND: A sample of 1089 Australian adults was selected for the longitudinal component of the Quake Impact Study, a 2-year, four-phase investigation of the psychosocial effects of the 1989 Newcastle earthquake. Of these, 845 (78%) completed a survey 6 months post-disaster as well as one or more of the three follow-up surveys. METHODS: The phase 1 survey was used to construct dimensional indices of self-reported exposure to threat the disruption and also to classify subjects by their membership of five 'at risk' groups (the injured; the displaced; owners of damaged small businesses; helpers in threat and non-threat situations). Psychological morbidity was assessed at each phase using the 12-item General Health Questionnaire (GHQ-12) and the Impact of Event Scale (IES). RESULTS: Psychological morbidity declined over time but tended to stabilize at about 12 months post-disaster for general morbidity (GHQ-12) and at about 18 months for trauma-related (IES) morbidity. Initial exposure to threat and/or disruption were significant predictors of psychological morbidity throughout the study and had superior predictive power to membership of the targeted 'at risk' groups. The degree of ongoing disruption and other life events since the earthquake were also significant predictors of morbidity. The injured reported the highest levels of distress, but there was a relative absence of morbidity among the helpers. CONCLUSIONS: Future disaster research should carefully assess the threat and disruption experiences of the survivors at the time of the event and monitor ongoing disruptions in the aftermath in order to target interventions more effectively.

Adult↗
PubMed1997

Psychosocial sequelae of the 1989 Newcastle earthquake: III. Role of vulnerability factors in post-disaster morbidity.

BACKGROUND: This paper examines the contributions of dispositional and non-dispositional factors to post-disaster psychological morbidity. Data reported are from the 845 participants in the longitudinal component of the Quake Impact Study. METHODS: The phase 1 survey was used to construct dimensional indices of threat and disruption exposure. Subsequently, a range of dispositional characteristics were measured, including neuroticism, personal hopefulness and defence style. The main morbidity measures were the General Health Questionnaire (GHQ-12) and Impact of Event Scale (IES). RESULTS: Dispositional characteristics were the best predictors of psychological morbidity throughout the 2 years post-disaster, contributing substantially more to the variance in morbidity (12-39%) than did initial exposure (5-12%), but the extent of their contribution was greater for general (GHQ-12) than for post-traumatic (IES) morbidity. Among the non-dispositional factors, avoidance coping contributed equally to general and post-traumatic morbidity (pr = 0.24). Life events since the earthquake (pr = 0.18), poor social relationships (pr = -0.25) and ongoing earthquake-related disruptions (pr = 0.22) also contributed to general morbidity, while only the latter contributed significantly to post-traumatic morbidity (pr = 0.15). CONCLUSIONS: Medium-term post-earthquake morbidity appears to be a function of multiple factors whose contributions vary depending on the type of morbidity experienced and include trait vulnerability, the nature and degree of initial exposure, avoidance coping and the nature and severity of subsequent events.

Adaptation, Psychological↗
PubMed1996

Management of children prescribed psychostimulant medication for attention deficit hyperactivity disorder in the Hunter region of NSW.

OBJECTIVE: To examine local procedures for assessment of attention deficit hyperactivity disorder (ADHD) and its management with psychostimulant medication and to compare these with published practice guidelines. DESIGN: Retrospective postal survey. PARTICIPANTS: Parents of children living in the Hunter region of New South Wales first prescribed psychostimulants between 1992 and 1994. MAIN OUTCOME MEASURES: Procedures for diagnostic assessment, treatment monitoring and continuing management. RESULTS: 788 parents (60%) responded. Diagnostic assessment procedures complied with published guidelines for about 70%, and detection of comorbid conditions was consistent with community prevalence estimates. There was systematic assessment of treatment response with questionnaires in only a third. Some children with academic or behavioural problems (19%-24% and 32%, respectively), almost 50% with emotional problems and 63% with motor problems were not receiving treatment for these difficulties. Modal interval for review was six months. Trials off medication were most commonly during school holidays, contrary to recommendations of the New South Wales Health Department. Most parents reported considerable improvement in their children's quality of life with medication. CONCLUSIONS: Problems comorbid with ADHD are detected often. Areas of deficiency in management of ADHD include the low rate of contact with schools for diagnostic assessment and determining treatment efficacy, poor support for comorbid problems, infrequent review, and inadequate methods for determining need to continue treatment.

Adolescent↗
PubMed1996

Stress debriefing and patterns of recovery following a natural disaster.

Stress debriefing has been used extensively following traumatic events; however, there is little evidence of its effectiveness. This paper reports the effects of stress debriefing on the rate of recovery of 195 helpers (e.g., emergency service personnel and disaster workers) following an earthquake in Newcastle, Australia (62 debriefed helpers and 133 who were not debriefed). Post-trauma stress reactions (Impact of Event Scale) and general psychological morbidity (General Health Questionnaire: GHQ-12) were assessed on four occasions over the first 2 years postearthquake. There was no evidence of an improved rate of recovery among those helpers who were debriefed, even when level of exposure and helping-related stress were taken into account. More rigorous investigation of the effectiveness of stress debriefing and its role in posttrauma recovery is urgently required.

Disasters↗
PubMed1996

Teaching psychiatry in an integrated medical curriculum.

OBJECTIVE: Efforts to improve the psychiatric competence of the general medical workforce must include an appraisal of how psychiatry is taught in medical schools. As a contribution to this appraisal a description is given of psychiatric education in the innovative undergraduate medical curriculum at the University of Newcastle. METHOD: An outline of the features which characterise medical education at Newcastle is provided and the way in which the teaching of psychiatry is organised within this framework is presented. RESULTS: The characteristics of the Newcastle undergraduate program in psychiatry include its integration with teaching in other clinical and basic science disciplines, continuity throughout the entire five years of the course, and the emphasis on skills acquisition and their assessment. CONCLUSIONS: The relative merits and disadvantages of the Newcastle approach to undergraduate psychiatry education are presented and the problem of assessing the effectiveness of this approach by outcomes measurement, particularly of integrated competencies and their application in general medical settings, is discussed.

Clinical Competence↗
PubMed1995

Psychosocial sequelae of the 1989 Newcastle earthquake: I. Community disaster experiences and psychological morbidity 6 months post-disaster.

A stratified random sample of 3007 Australian adults completed a screening questionnaire 6 months after the 1989 Newcastle earthquake. Information was obtained on initial earthquake experiences and reactions, use of specific services, social support, coping strategies and psychological morbidity. This questionnaire was the first phase of the Quake Impact Study, a longitudinal project investigating the psychosocial impact of the earthquake. Two weighted indices of exposure were developed: a threat index, which measured exposure to injury or the possibility of injury; and a disruption index, which measured experiences of property damage, displacement and other losses. Levels of exposure to threat and disruption events were significant predictors of morbidity on both the General Health Questionnaire and Impact of Event Scale, as were coping style and gender. Effects of exposure to threat and disruption were largely additive, with higher exposure being associated with greater use of support services, higher perceived stressfulness and more severe psychological morbidity. Use of avoidance as a coping strategy, female gender, lower social support and being older were also associated with higher post-disaster psychological distress. It was estimated that 14.8% of the population was exposed to high levels of threat or disruption, of whom approximately 25% experienced moderate to severe psychological distress as a direct result of the disaster. It was further estimated that 18.3% of those exposed to high levels of threat were at risk of developing post-traumatic stress disorder, representing approximately 2% of the city's adult population.

Adaptation, Psychological↗