Biomedical subjects

Lyndal Bond

Publications and source records attributed to Lyndal Bond.

11 recordsLinked to original sources

PubMed2007

A comparison of the Gatehouse Bullying Scale and the peer relations questionnaire for students in secondary school.

BACKGROUND: Bullying occurs in all schools. Measuring bullying in schools is complicated because both definitions of bullying and methods for measuring bullying vary. This study compared a brief 12-item Gatehouse Bullying Scale (GBS) with items drawn from the Peer Relations Questionnaire (PRQ), a well-established bullying questionnaire to measure the concurrent validity of the GBS. METHODS: Year 8 secondary school students (14 years of age) in metropolitan and regional Victoria, Australia, completed questionnaires assessing being teased, being deliberately left out, had rumors spread about oneself, and/or being physically threatened or hurt. RESULTS: The prevalence of bullying using GBS and PRQ was 57% and 61%, respectively. Percent agreement between the 2 measures was high. Agreement adjusted for chance was moderate (kappa 0.5). The GBS had good to moderate test-retest reliability (rho 0.65). CONCLUSIONS: The GBS is a short, reliable tool measuring the occurrence of bullying in schools. As well as a global estimate of bullying, the GBS provides estimates of 2 covert and 2 overt types of bullying which can be useful for schools to better plan interventions dealing with school bullying.

Adolescent↗

PubMed2006

Promoting social inclusion in schools: a group-randomized trial of effects on student health risk behavior and well-being.

OBJECTIVES: We sought to test the efficacy of an intervention that was designed to promote social inclusion and commitment to education, in reducing among students health risk behaviors and improving emotional well-being. METHODS: The design was a cluster-randomized trial in 25 secondary schools in Victoria, Australia. The subjects were 8th-grade students (aged 13 to 14 y) in 1997 (n=2545) and subsequent 8th-grade students in 1999 (n=2586) and 2001 (n=2463). The main outcomes were recent substance use, antisocial behavior, initiation of sexual intercourse, and depressive symptoms. RESULTS: At 4-year follow-up, the prevalence of marked health risk behaviors was approximately 20% in schools in the comparison group and 15% in schools in the intervention group, an overall reduction of 25%. In ordinal logistic regression models a protective effect of intervention was found for a composite measure of health risk behaviors in unadjusted models (odds ratio [OR]= 0.69; 95% confidence interval [CI]= 0.50, 0.95) and adjusted models (OR= 0.71; CI =0.52, 0.97) for potential confounders. There was no evidence of a reduction in depressive symptoms. CONCLUSION: The study provides support for prevention strategies in schools that move beyond health education to promoting positive social environments.

Adolescent↗

PubMed2005

A comparison of self-reported puberty using the Pubertal Development Scale and the Sexual Maturation Scale in a school-based epidemiologic survey.

PURPOSE: To examine concordance between two self-reported measures of puberty: Sexual Maturation Scale (SMS) and Pubertal Development Scale (PDS) and their acceptability to adolescents. METHODS: Participants of a school-based study in grades 5, 7 and 9 were classified into one of 5 pubertal stages using each method. RESULTS: 2864 students (age 9-16 years) participated. Agreement was moderate for males (kappa 0.42, 95% CI 0.39, 0.45) and females (kappa 0.57, 95% CI 0.53, 0.61). Concordance within one stage was excellent (females 97%, males 89%), with discrepancies due to females being classified one stage later on the PDS (26%) and males one stage earlier (32%). There were more missing data for the SMS (13%) than the PDS (4%). CONCLUSIONS: Given the level of concordance and difficulties of using the drawings in a school-based survey, we would recommend the PDS as an alternative to assess pubertal status in epidemiological studies.

Adolescent↗

PubMed2005

Individual, family, school, and community risk and protective factors for depressive symptoms in adolescents: a comparison of risk profiles for substance use and depressive symptoms.

This study examines the relationship between adolescent depressive symptoms and risk and protective factors identified for substance use. A questionnaire, developed to measure these factors in a young person's community, family, school, peer group, and individual characteristics for substance use, was used to assess associations with self-reported depressive symptoms. Data were provided by a representative sample of 8984 secondary school students in Victoria, Australia. The prevalence of depressive symptoms was 10.5% (95% CI 9.2,12.0) for males and 21.7% (95% CI 20.3,23.7) for females. Depressive symptoms were associated with factors in all domains, with the strongest associations in the family domain. Strong relationships were found between the number of elevated risk and protective factors and depressive symptoms, maintained after adjusting for substance use. Patterns of associations were similar for users and nonsubstance users. The findings indicate that prevention programs targeting factors for substance use have the potential to impact on depression.

Adolescent↗

PubMed2004

Risk and protection factors for different intensities of adolescent substance use: when does the Prevention Paradox apply?

The 'Prevention Paradox' applies when low-risk individuals in a population contribute the most cases of a condition or problem behaviour by virtue of their being in the majority, thereby recommending a universal or whole of population approach to prevention. The applicability of a universal as opposed to a targeted high-risk approach to the prevention of youth substance use was examined in two studies of children and adolescents conducted in Victoria, Australia. These studies were reanalysed by recombining developmental, social and individual measures to form cumulative risk indices for substance use. In Study 1, a cross-sectional survey of students, most regular tobacco, alcohol and cannabis use by 15/16-year-olds occurred in the moderate and low-risk groups, recommending a universal prevention strategy. However, the majority of illicit drug use occurred in the highest-risk group (top 15%). Furthermore, in younger age groups both legal and illegal drug use was concentrated mainly in the highest risk group. Study 2 used data from a major longitudinal study where risk factors at around age 11/12 years were used to predict substance use at age 17/18 years. Most students who admitted involvement in frequent smoking, heavy drinking and, although to a lesser degree, cannabis were classified as low or average risk. It is concluded that universal prevention strategies are needed for late adolescent alcohol, tobacco and cannabis use and more targeted strategies for addressing harm related to early age drug use, frequent cannabis use and illegal drug use.

Adolescent↗

PubMed2004

Long-term impact of the Gatehouse Project on cannabis use of 16-year-olds in Australia.

This study examined the impact of a school-based preventive intervention on cannabis use in adolescence, using a cluster-randomized trial of a multilevel intervention aimed at improving social relationships within schools by promoting change in school environment. Four waves of data were collected at baseline (1997, Year 8: mean age 13 years) and six, 18, and 30 months later (1999, Year 10: mean age 16 years). Self-reported substance use, school engagement, and sociodemographic data were collected using computer-administered questionnaires. Some 2.678(74%) Year 8 students participated (wave 1) with minimal attrition (10% by wave 4). Adjusting for baseline use, weak evidence existed for an intervention effect on the prevalence of any use at Year 10 (OR 0.75, 95% CI 0.54, 1.05) and incident weekly use (OR 0.72, 95% CI 0.39, 1.33). These effects were reduced after adjusting for confounders. Moderate evidence suggested an interaction effect between intervention group and tobacco use (p = 0.04), suggesting the intervention was more effective for non-smokers at baseline (Adj. OR 0.50, 95% CI 0.26, 0.98). This study indicates that a multi-level school-based program may provide an innovative direction for sustainable school interventions with the potential to reduce substance use.

Adolescent↗

PubMed2004

The Gatehouse Project: can a multilevel school intervention affect emotional wellbeing and health risk behaviours?

STUDY OBJECTIVE: The aim of this study was to determine the effect of a multilevel school based intervention on adolescents' emotional wellbeing and health risk behaviours. DESIGN: School based cluster randomised controlled trial. Students were surveyed using laptop computers, twice in the first year of intervention and annually thereafter for a further two years. SETTING: Secondary schools. PARTICIPANTS: 2678 year 8 students (74%) participated in the first wave of data collection. Attrition across the waves was less than 3%, 8%, and 10% respectively with no differential response rate between intervention and control groups at the subsequent waves (98% v 96%; 92% v 92%, and 90% v 89% respectively). MAIN RESULTS: A comparatively consistent 3% to 5% risk difference was found between intervention and control students for any drinking, any and regular smoking, and friends' alcohol and tobacco use across the three waves of follow up. The largest effect was a reduction in the reporting of regular smoking by those in the intervention group (OR 0.57, 0.62, and 0.72 at waves 2, 3, and 4 respectively). There was no significant effect of the intervention on depressive symptoms, and social and school relationships. CONCLUSIONS: While further research is required to determine fully the processes of change, this study shows that a focus on general cognitive skills and positive changes to the social environment of the school can have a substantial impact on important health risk behaviours.

Adolescent↗

PubMed2004

A comparison of methods to obtain active parental consent for an international student survey.

Many school-based research efforts require active parental consent for student participation. Maximizing rates of consent form return and agreement is an important issue, because sample representativeness may be compromised when these rates are low. This article compares two methods for obtaining active parental consent: return of consent forms in the mail versus return by students to their classrooms. The methods were tested in a pilot study of 46 schools (1,058 students), with half of the schools randomly allocated to each of the alternative methods. A hierarchical nonlinear model of consent form return and agreement rates suggests that the student-delivered method is more successful at producing higher rates of consent form return and agreement to participate in the study, after controlling for school-level characteristics. The authors discuss the findings and their implications for other researchers engaged in school-based research with adolescents.

Adolescent↗

PubMed2003

Adolescent resilience: a concept analysis.

There is need for greater clarity around the concept of resilience as it relates to the period of adolescence. Literature on resilience published between 1990 and 2000 and relevant to adolescents aged between 12- and 18-years of age was reviewed with the aim of examining the various uses of the term, and commenting on how specific ways of conceptualizing of resilience may help develop new research agendas in the field. By bringing together ideas on resilience from a variety of research and clinical perspectives, the purpose of the review is to explicate core elements of resilience in more precise ways, in the hope that greater conceptual clarity will lead to a range of tailored interventions that benefit young people.

Adaptation, Psychological↗

PubMed2003

Changing schools, changing health? Design and implementation of the Gatehouse Project.

PURPOSE: To describe the Gatehouse Project which addresses the social context of high school with an aim of changing students' sense of school connection and in turn, health risk behavior and well-being. METHODS: Distinguishing features of the project were its conceptual framework, implementation process, and evaluation design. The conceptual framework derived from attachment theory and focused on three aspects of the school social context: security, communication, and participation. Implementation was standardized around a survey of the school social environment, creation of a school-based action team, and the implementation of strategies matched to a school's profile of need. In addition, an early high school curriculum addressed the skills relevant to social functioning and emotional adjustment. The evaluation design was based on a cluster randomized trial involving 26 schools. It used follow-up of an individual cohort and repeat cross-sectional surveys to capture outcomes at an individual student and whole-school level. RESULTS AND CONCLUSIONS: The Gatehouse Project drew on both health and education research to develop and coordinate a broad-based school health promotion intervention. It represents a promising new direction for school-based preventive work.

Adolescent↗

PubMed2002

Increases in vaccination coverage for children in child care, 1997 to 2000: an evaluation of the impact of government incentives and initiatives.

OBJECTIVE: To compare vaccination coverage of children in child care before (1997) and after (2000) implementation of government immunisation strategies including parent/providers incentives and surveillance of vaccination uptake. METHODS: Cross-sectional parent surveys of vaccination coverage for children (<3 years old regularly attending child care) in 47 child care centres and 19 councils operating family day care in metropolitan Melboume. RESULTS: Data were collected for 1,578 (72%) children in 1997 and 1,793 (72%) in 2000. In 2000, 93% were completely immunised, a 9% (95% CI 6%-11%, p<0.001) increase from 1997. Less than 1% of children were unimmunised (0.8% in 1997, 0.5% in 2000). For those >2 years, 94% were completely immunised before their second birthday in 2000 compared with 80% in 1997. Immunisation levels were 10% (95% Cl 6-12) higher in 2000 than in 1997 for those receiving child care benefits compared with a 7% (95% Cl 3-10) increase for families not receiving benefits. In 1997, 8 (17%) child care centres and 4 (21%) councils reported > or = 90% children completely immunised increasing to 33 (70%) and 16 (84%) in 2000 respectively. Fewer families reported delaying immunisations because of minor illness in 2000 (27%) compared to 1997 (44%, p<.001). Updating immunisation data by child care coordinators increased from 51% in 1997 to 98% in 2000. CONCLUSION: A substantial increase in immunisation uptake has been achieved for this population of young children attending child care. This study provides evidence that the increase in vaccination rates is attributable to some extent to increased surveillance of immunisation rates and both parent and provider incentives to immunise.

Australia↗