scholarly journals Cluster randomised controlled trial of an online intervention to prevent ecstasy and new psychoactive substance use among adolescents: final results and implications for implementation

BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e020433 ◽  
Author(s):  
Katrina E Champion ◽  
Nicola Clare Newton ◽  
Lexine Stapinski ◽  
Maree Teesson
Keyword(s):  
Randomised Controlled Trial ◽  
Health Education ◽  
Controlled Trial ◽  
Cluster Randomised Controlled Trial ◽  
Online Intervention ◽  
Control Group ◽  
Full Dose ◽  
Cluster Randomised ◽  
Randomised Controlled ◽  
The Impact

ObjectivesTo evaluate the effectiveness of the onlineClimate Schools: Ecstasy and Emerging Drugs moduleover 2 years, and examine the impact of intervention dose on outcomes.DesignCluster randomised controlled trial.SettingSecondary schools in Australia.Participants1126 students (aged 14.9 years) from 11 schools.InterventionFive schools were randomly allocated to the four-lesson internet-basedClimate Schools: Ecstasy and Emerging Drugsmodule. This universal intervention uses cartoon storylines to deliver harm-minimisation information about ecstasy and new psychoactive substances (NPS). It was delivered during health education classes over 4 weeks. Six schools were randomised to the control group (health education as usual). Participants were not blinded to intervention allocation.Outcomes measuresStudents completed self-report surveys at baseline, post-test, 6, 12 and 24 months post-baseline. Intentions to use ecstasy and NPS (including synthetic cannabis and synthetic stimulants), knowledge about ecstasy and NPS and lifetime use of ecstasy and NPS were assessed. This paper reports the results at 24 months post-baseline.AnalysisMixed effects regressions were conducted to analyse intervention effects from baseline to 24 months. Post hoc analyses using Inverse Probability of Treatment Weighting compared controls with students who: i) completed all four lessons (‘full dose’) and ii) partially completed the intervention (≤three lessons, ‘incomplete dose’).ResultsPrimary analyses found that controls were significantly more likely to intend on using synthetic cannabis compared with intervention group students (OR=3.56, p=0.01). Results from the weighted analyses indicated that controls reported significantly lower knowledge about ecstasy (p=0.001) and NPS (p=0.04) compared with the full-dose group. No significant differences were observed between the incomplete dose and control groups.ConclusionsThe online intervention was effective in modifying students’ intentions to use synthetic cannabis up to 24 months; however, this study highlights the importance of delivering prevention programmes in full to maximise student outcomes.Trial registration numberACTRN12613000708752.

scholarly journals Effectiveness and cost-effectiveness of the PLAN-A intervention, a peer led physical activity program for adolescent girls: results of a cluster randomised controlled trial

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Russell Jago ◽  
Byron Tibbitts ◽  
Kathryn Willis ◽  
Emily Sanderson ◽  
Rebecca Kandiyali ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cost Effectiveness ◽  
Randomised Controlled Trial ◽  
Primary Outcome ◽  
Controlled Trial ◽  
Cluster Randomised Controlled Trial ◽  
Control Group ◽  
Cluster Randomised ◽  
Secondary Outcomes ◽  
Randomised Controlled

Abstract Background Physical activity is associated with improved health. Girls are less active than boys. Pilot work showed that a peer-led physical activity intervention called PLAN-A was a promising method of increasing physical activity in secondary school age girls. This study examined the effectiveness and cost-effectiveness of the PLAN-A intervention. Methods We conducted a cluster randomised controlled trial with Year 9 (13–14 year old) girls recruited from 20 secondary schools. Schools were randomly assigned to the PLAN-A intervention or a non-intervention control group after baseline data collection. Girls nominated students to be peer leaders. The top 18 % of girls nominated by their peers in intervention schools received three days of training designed to prepare them to support physical activity. Data were collected at two time points, baseline (T0) and 5–6 months post-intervention (T1). Participants wore an accelerometer for seven days to assess the primary outcome of mean weekday minutes of moderate-to-vigorous physical activity (MVPA). Multivariable mixed effects linear regression was used to estimate differences in the primary outcome between the two arms on an Intention-to-Treat (ITT) basis. Resource use and quality of life were measured and a within trial economic evaluation from a public sector perspective was conducted. Results A total of 1558 girls were recruited to the study. At T0, girls in both arms engaged in an average of 51 min of MVPA per weekday. The adjusted mean difference in weekday MVPA at T1 was − 2.84 min per day (95 % CI = -5.94 to 0.25) indicating a slightly larger decline in weekday MVPA in the intervention group. Results were broadly consistent when repeated using a multiple imputation approach and for pre-specified secondary outcomes and sub-groups. The mean cost of the PLAN-A intervention was £2817 per school, equivalent to £31 per girl. Economic analyses indicated that PLAN-A did not lead to demonstrable cost-effectiveness in terms of cost per unit change in QALY. Conclusions This study has shown that the PLAN-A intervention did not result in higher levels of weekday MVPA or associated secondary outcomes among Year 9 girls. The PLAN-A intervention should not be disseminated as a public health strategy. Trial registration ISRCTN14539759–31 May, 2018.

scholarly journals Efficacy of a smartphone-based coaching program for addiction prevention among apprentices: study protocol of a cluster-randomised controlled trial

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Severin Haug ◽  
Raquel Paz Castro ◽  
Andreas Wenger ◽  
Michael P. Schaub
Keyword(s):  
Randomised Controlled Trial ◽  
Cigarette Smoking ◽  
Internet Use ◽  
Controlled Trial ◽  
Intervention Group ◽  
Cluster Randomised Controlled Trial ◽  
Control Group ◽  
Addiction Prevention ◽  
Cluster Randomised ◽  
Randomised Controlled

Abstract Background A large proportion of apprentices shows addictive behaviours like cigarette smoking, alcohol, cannabis, or compulsive Internet use, others do not show such behaviours at all. ready4life is a smartphone application-based coaching program for apprentices, which takes into account the heterogeneity of adolescent addictive behaviour by promoting life skills and reducing risk behaviours. The main objective of the planned study is to test the efficacy of ready4life for addiction prevention among apprentices in Switzerland within a controlled trial. Methods/design The efficacy of the ready4life coaching program will be tested in comparison to an assessment only control group, within a cluster-randomised controlled trial with one follow-up assessment after 6 months. At the beginning of the program, participants of the intervention group will receive an individual profile, showing areas in which they have sufficient resources and in which there is a need for coaching. Based on this feedback, they can select two out of the following six program modules: stress, social skills, Internet use, tobacco/e-cigarettes, cannabis, and alcohol. Participants of the intervention group will receive individualised coaching by a conversational agent (chatbot) for a period of four months. The coaching relies on motivational and social-cognitive principles of behaviour change. Within weekly dialogues, the coach provides individually tailored information in different formats, such as videoclips, texts, or pictures. Study participants will be 1318 apprentices with a minimum age of 15, recruited in approximately 100 vocational school classes in Switzerland. Primary outcome will be a composite measure for addictive behaviours including (1) at risk-drinking, (2) tobacco/e-cigarette smoking, (3) cannabis use, and (4) problematic Internet use. Discussion The study will reveal whether this universally implementable but individually tailored intervention approach is effective in preventing the onset and escalation of addictive behaviors among apprentices. Trial registration ISRCTN59908406 (registration date: 21/10/2020).

scholarly journals Effects of a kindergarten intervention on vegetables served and staff’s food-related practices: results of a cluster randomised controlled trial – the BRA study

2020 ◽  
Vol 23 (6) ◽  
pp. 1117-1126
Author(s):  
Anne Himberg-Sundet ◽  
Anne Lene Kristiansen ◽  
Lene Frost Andersen ◽  
Mona Bjelland ◽  
Nanna Lien
Keyword(s):  
Randomised Controlled Trial ◽  
Vegetable Intake ◽  
Controlled Trial ◽  
Intervention Group ◽  
Cluster Randomised Controlled Trial ◽  
Control Group ◽  
Public And Private ◽  
Cluster Randomised ◽  
Block Randomisation ◽  
Randomised Controlled

AbstractObjective:The aim of the current study was to evaluate the effect on frequency, variety and amount of vegetables served and staff’s food-related practices in the multicomponent BRA intervention.Design:Cluster randomised controlled trial, conducted between Spring 2015 and Spring 2016. For allocation of the kindergartens, a stratified block randomisation was used. Data were collected in three ways: (i) a questionnaire for pedagogical leaders assessing the variety and frequency of vegetables served, including staff’s food-related practices assumed to be related to vegetable intake; (ii) a questionnaire for kindergarten assistants assessing staff’s food-related practices; (iii) a 5-d weighted vegetable diary assessing amount of vegetables served in a department.Setting:The target group for this study was public and private kindergartens in the counties of Vestfold and Buskerud, Norway.Participants:A total of seventy-three kindergartens participated.Results:At follow-up I, the amount of vegetables served increased by approximately 20 g per person per day (P = 0·002), and the variety in served vegetables increased by one-and-a-half kind per month (P = 0·014) in the intervention group compared to the control group. No effects on the frequency of vegetables served or on staff’s food-related practices were found.Conclusions:The BRA intervention was successful in increasing the amount and variety of vegetables served within intervention kindergartens. Further research is needed to understand the mechanisms that can affect the staff’s food-related practices.

scholarly journals Community- and mHealth-based integrated management of diabetes in primary healthcare in Rwanda (D²Rwanda): the protocol of a mixed-methods study including a cluster randomised controlled trial

BMJ Open ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. e028427 ◽  
Author(s):  
Charilaos Lygidakis ◽  
Jean Paul Uwizihiwe ◽  
Per Kallestrup ◽  
Michela Bia ◽  
Jeanine Condo ◽  
...  
Keyword(s):  
Mixed Methods ◽  
Randomised Controlled Trial ◽  
Integrated Management ◽  
Controlled Trial ◽  
Health Behaviours ◽  
Cluster Randomised Controlled Trial ◽  
Control Group ◽  
Chronic Patients ◽  
Cluster Randomised ◽  
Randomised Controlled

IntroductionIn Rwanda, diabetes mellitus prevalence is estimated between 3.1% and 4.3%. To address non-communicable diseases and the shortage of health workforce, the Rwandan Ministry of Health has introduced the home-based care practitioners (HBCPs) programme: laypeople provide longitudinal care to chronic patients after receiving a six-month training. Leveraging technological mobile solutions may also help improve health and healthcare. The D²Rwanda study aims at: (a) determining the efficacy of an integrated programme for the management of diabetes in Rwanda, which will provide monthly patient assessments by HBCPs, and an educational and self-management mHealth patient tool, and; (b) exploring qualitatively the ways the interventions will have been enacted, their challenges and effects, and changes in the patients’ health behaviours and HBCPs’ work satisfaction.Methods and analysisThis is a mixed-methods sequential explanatory study. First, there will be a one-year cluster randomised controlled trial including two interventions ((1) HBCPs’ programme; (2) HBCPs’ programme + mobile health application) and usual care (control). Currently, nine hospitals run the HBCPs’ programme. Under each hospital, administrative areas implementing the HBCPs’ programme will be randomised to receive intervention 1 or 2. Eligible patients from each area will receive the same intervention. Areas without the HBCPs’ programme will be assigned to the control group. The primary outcome will be changes in glycated haemoglobin. Secondary outcomes include medication adherence, mortality, complications, health-related quality of life, diabetes-related distress and health literacy. Second, at the end of the trial, focus group discussions will be conducted with patients and HBCPs. Financial support was received from the Karen Elise Jensens Fond, and the Universities of Aarhus and Luxembourg.Ethics and disseminationEthics approval was obtained from the Rwanda National Ethics Committee and the Ethics Review Panel of the University of Luxembourg. Findings will be disseminated via peer-reviewed publications and conference presentations.Trial registration numberNCT03376607; Pre-results.

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