Lessons learned from the AFLY5 RCT process evaluation: implications for the design of physical activity and nutrition interventions in schools.

BACKGROUND: Systematic reviews have highlighted that school-based diet and physical activity (PA) interventions have had limited effects. This study used qualitative methods to examine how the effectiveness of future primary (elementary) school diet and PA interventions could be improved. METHODS: Data are from the Active For Life Year 5 (AFLY5) study, which was a cluster randomised trial conducted in 60 UK primary schools. Year 5 (8-9 years of age) pupils in the 30 intervention schools received a 12-month intervention. At the end of the intervention period, interviews were conducted with: 28 Year 5 teachers (including 8 teachers from control schools); 10 Headteachers (6 control); 31 parents (15 control). Focus groups were conducted with 70 year 5 pupils (34 control). Topics included how the AFLY5 intervention could have been improved and how school-based diet and PA interventions should optimally be delivered. All interviews and focus groups were transcribed and thematically analysed across participant groups. RESULTS: Analysis yielded four themes. Child engagement: Data suggested that programme success is likely to be enhanced if children feel that they have a sense of autonomy over their own behaviour and if the activities are practical. School: Finding a project champion within the school would enhance intervention effectiveness. Embedding diet and physical activity content across the curriculum and encouraging teachers to role model good diet and physical activity behaviours were seen as important. Parents and community: Encouraging parents and community members into the school was deemed likely to enhance the connection between schools, families and communities, and "create a buzz" that was likely to enhance behaviour change. Government/Policy: Data suggested that there was a need to adequately resource health promotion activity in schools and to increase the infrastructure to facilitate diet and physical activity knowledge and practice. DISCUSSION AND CONCLUSIONS: Future primary school diet and PA programmes should find ways to increase child engagement in the programme content, identify programme champions, encourage teachers to work as role models, engage parents and embed diet and PA behaviour change across the curriculum. However, this will require adequate funding and cost-effectiveness will need to be established. TRIAL REGISTRATION: ISRCTN50133740.

Patterns of alcohol use and multiple risk behaviour by gender during early and late adolescence: the ALSPAC cohort.

BACKGROUND: Adolescent risk behaviours such as smoking, alcohol use and antisocial behaviour are associated with increased risk of morbidity and mortality. Patterns of risk behaviour may vary between genders during adolescence. METHODS: Analysis of data from a longitudinal birth cohort to assess the prevalence and distribution of multiple risk behaviours by gender at age 15-16 years with a focus on alcohol use at age 10, 13 and 15 years. RESULTS: By age 15 years, over half of boys and girls had consumed alcohol and one-fifth had engaged in binge drinking with no clear difference by gender. At age 15-16 years, the most prevalent risk behaviours were physical inactivity (74%), antisocial and criminal behaviour (42%) and hazardous drinking (34%). Boys and girls engaged in a similar number of behaviours but antisocial and criminal behaviours, cannabis use and vehicle-related risk behaviours were more prevalent among boys, whilst tobacco smoking, self-harm and physical inactivity were more prevalent among girls. CONCLUSION: Multiple risk behaviour is prevalent in both genders during adolescence but the pattern of individual risk behaviour varies between boys and girls. Effective interventions at the individual, family, school, community or population level are needed to address gender-specific patterns of risk behaviour during adolescence.

Economic evaluation of lifestyle interventions to treat overweight or obesity in children.

OBJECTIVE: To estimate lifetime cost effectiveness of lifestyle interventions to treat overweight and obese children, from the UK National Health Service perspective. DESIGN: An adaptation of the National Heart Forum economic model to predict lifetime health service costs and outcomes of lifestyle interventions on obesity-related diseases. SETTING: Hospital or community-based weight-management programmes. POPULATION: Hypothetical cohorts of overweight or obese children based on body mass data from the National Child Measurement Programme. INTERVENTIONS: Lifestyle interventions that have been compared with no or minimal intervention in randomized controlled trials (RCTs). MAIN OUTCOME MEASURES: Reduction in body mass index (BMI) standard deviation score (SDS), intervention resources/costs, lifetime treatment costs, obesity-related diseases and cost per life year gained. RESULTS: Ten RCTs were identified by our search strategy. The median effect of interventions versus control from these 10 RCTs was a difference in BMI SDS of -0.13 at 12 months, but the range in effects among interventions was broad (0.04 to -0.60). Indicative costs per child of these interventions ranged from £108 to £662. For obese children aged 10-11 years, an intervention that resulted in a median reduction in BMI SDS at 12 months at a moderate cost of £400 increased life expectancy by 0.19 years and intervention costs were offset by subsequent undiscounted savings in treatment costs (net saving of £110 per child), though this saving did not emerge until the sixth or seventh decade of life. The discounted cost per life year gained was £13 589. Results were broadly similar for interventions aimed at children aged 4-5 years and which targeted both obese and overweight children. For more costly interventions, savings were less likely. CONCLUSION: Interventions to treat childhood obesity are potentially cost effective although cost savings and health benefits may not appear until the sixth or seventh decade of life.

Developing parent involvement in a school-based child obesity prevention intervention: a qualitative study and process evaluation.

BACKGROUND: Little is known about the effectiveness of parent involvement in school-based obesity prevention interventions. METHODS: A qualitative study with parents of children aged 9-10 years was conducted to identify possible methods to involve them in a school-based obesity prevention intervention, followed by a process evaluation of homework and school newsletters to involve parents. RESULTS: Qualitative study: parents supported the use of homework and school newsletters to involve them and overcome the main barriers of their work and time. Process evaluation: Ten homeworks and inserts for the school newsletter about the obesity prevention intervention were developed and delivered. The majority of homeworks were given out (73%), completed by children (84%) and recalled by parents (60-68%). The majority of homeworks were enjoyed by parents and children. All the schools put information about the project in the newsletter and this was recalled by parents. Most parents felt the homeworks were a practical way of involving them. CONCLUSIONS: Homeworks are routinely given to children and provide a means of engaging potentially all parents if parental support is required. Homeworks which are novel, fun and involve activities and social contact are enjoyed by parents and children and may increase awareness of healthy diet and physical activity.

Health needs assessment in a male prison in England.

OBJECTIVES: To assess the health needs of prisoners in a male category B prison in Bristol, England, to identify areas for improving health in the prison. STUDY DESIGN: Cross-sectional and qualitative. METHODS: Analysis of prisoners' self-reported health needs at reception and at a secondary health screen; prisoners' access to primary care, inpatients, mental health, sexual health and substance misuse services; and prescribed medications. Random selection of prisoners for interviews. Focus groups and interviews with staff and stakeholders. RESULTS: 18 prisoners were interviewed (29% of those randomly selected), five focus groups were held with staff and stakeholders involved in health care provision in the prison and four interviews were held with staff and stakeholders. The areas of greatest health needs were identified as dental care, mental health and substance misuse. Prisoners and staff generally reported good access to most health care staff, provision of prescribed medication, bloodborne virus vaccination and treatment of substance misuse. Twenty nine recommendations were identified with five high-priority areas for improvement including an urgent review of dental services; stronger joint commissioning arrangements for health and social care; installing an integrated IT system; prevention of disease and health promotion; better use of the voluntary sector. A detailed action plan was developed to address all the recommendations and this has formed the basis of a programme of ongoing quality improvement work which is monitored by the Prison Partnership Board. Progress has been made against all key areas. CONCLUSIONS: The mixed methodology which involved analysis of health data and talking to a wide group of stakeholders, including prisoners, helped triangulate the data. The process of undertaking the health needs assessment shifted the focus from 'health care' to 'health'. This has facilitated a significant reframing of the concepts of 'health' and 'health need' with ongoing work now focused on the prison as a whole system, not merely on the provision of health care within the prison. Many improvements have already been made in response to the assessment.

Variation in childhood and adolescent obesity prevalence defined by international and country-specific criteria in England and the United States.

OBJECTIVE: To compare childhood obesity prevalence in England and the United States using different criteria. SUBJECTS/METHODS: Participants included 2- to 17-year olds in the Health Survey for England (HSE, n=33 563) and the US National Health and Nutrition Examination Survey (NHANES, n=14 540) 1999 through 2006. Mean body mass index (BMI) and prevalence of obesity were compared using the UK 1990, US 2000 Centers for Disease Control and International Obesity Task Force (IOTF) criteria. RESULTS: English children at ages 2-5 years had a higher mean BMI than US children (mean difference (English minus US)=0.41 kg/m(2), 95% confidence intervals (CI) 0.31-0.52). At age ≥8 years, mean BMI was lower in England (for ages 8-11 years, mean difference = -1.00 kg/m(2), 95% CI -1.26 to -0.75; for ages 12-17 years, mean difference = -1.37 kg/m(2), 95% CI -1.59 to -1.14). The IOTF criteria produced the lowest estimates of obesity prevalence. The 2000 Centre for Disease Control and Prevention (CDC) criteria produced the highest estimates in younger children and the UK 1990 criteria produced the highest in adolescents. Children aged 2-5 years in England had higher prevalence of obesity than those in the United States when using the 2000 CDC and UK 1990 criteria. US adolescents had the highest prevalence of obesity by age group using each of the three criteria. CONCLUSION: The 2000 CDC and UK 1990 criteria give a higher prevalence of obesity in England than in the United States at ages 2-5 years; however, at age ≥8 years, the reverse is true. Estimates of childhood obesity prevalence rely on the criteria used, which has implications for surveillance and clinical practice.

Randomised controlled trial adapting US school obesity prevention to England.

OBJECTIVES: To determine whether a school obesity prevention project developed in the United States can be adapted for use in England. METHODS: A pilot cluster randomised controlled trial and interviews with teachers were carried out in 19 primary schools in South West England. Participants included 679 children in year 5 (age 9-10). Baseline and follow-up assessments were completed for 323 children (screen viewing) and 472 children (body mass index). Sixteen lessons on healthy eating, physical activity and reducing TV viewing were taught over 5 months by teachers. Main outcome measures were hours of screen activities, body mass index, mode of transport to school and teachers' views of the intervention. RESULTS: Children from intervention schools spent less time on screen-viewing activities after the intervention but these differences were imprecisely estimated: mean difference in minutes spent on screen viewing at the end of the intervention (intervention schools minus control schools) adjusted for baseline levels and clustering within schools was -11.6 (95% CI -42.7 to 19.4) for a week day and was -15.4 (95% CI -57.5 to 26.8) for a Saturday. There was no difference in mean body mass index or the odds of obesity. CONCLUSIONS: It is feasible to transfer this US school-based intervention to UK schools, and it may be effective in reducing the time children spend on screen-based activities. The study has provided information for a full-scale trial, which would require 50 schools ( approximately 1250 pupils) to detect effects on screen viewing and body mass index over 2 years of follow-up.

Developing audit standards required for outbreaks of communicable diseases-lessons from a mumps outbreak.

BACKGROUND: A mumps outbreak occurred in 2004-05 in England and Wales. The outbreak in the Avon area of England led to mass vaccination of 16- to 24-year-olds with the measles, mumps and rubella vaccine (MMR). The response to the outbreak was audited. Literature and web searches for audit standards were undertaken, and experts in the field were contacted. No comprehensive audit standards for outbreaks of communicable diseases were found. This article describes an approach to developing audit standards for outbreaks of communicable diseases. METHODS: Audit standards were developed based on the memorandum of understanding between the National Health Service (NHS) and Health Protection Agency. The audit was undertaken involving 25 staff. RESULTS: The audit standards developed identified many areas for improvement including training, strategic co-ordination, inter-organizational communication, consistency and timeliness of communication. Conducting the audit was problematic because there were not pre-defined audit standards. CONCLUSIONS: Audit standards should be developed, which include issues relating to the structure, process and outcome of responses to outbreaks. The development of audit standards for the management of outbreaks is crucial to evaluate outbreak control and make necessary improvements.

Priority access criteria for elective cholecystectomy: a comparison of three scoring methods.

AIM: To compare two priority access criteria scoring methods for elective cholecystectomy, with a score based on clinical judgement obtained using a linear analogue scale. METHODS: Patients placed on the waiting list for elective laparoscopic cholecystectomy between June and October 1997 were prioritised using the three methods. RESULTS: Data were obtained for 22 patients. The distributions of scores were different but there was a significant correlation between them. However, limits of agreement analysis demonstrated little agreement between them with a difference of +/- 30 points (out of a 100) between scores obtained with each method. CONCLUSION: The proposed methods for establishing priority access to elective cholecystectomy are poor tools, require validation and bear little relation to expert clinical judgement.