Randomised controlled trial of the effectiveness of a schools-based, peer-led, smoking intervention

ISRCTN	ISRCTN55572965
DOI	https://doi.org/10.1186/ISRCTN55572965
Protocol serial number	G9900538
Sponsor	Cardiff University (UK)
Funder	Medical Research Council (MRC) (UK)

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Prof Laurence Moore
Scientific

School of Social Sciences
Cardiff University
King Edward VII Ave
Cardiff
CF10 3WT
United Kingdom

Phone	+44 (0)29 208 75387
Email	MooreL1@cf.ac.uk

Primary study design	Interventional
Study design	Randomised controlled trial
Secondary study design	Randomised controlled trial
Scientific title
Study acronym	ASSIST (A Stop Smoking in Schools Trial)
Study objectives	1. To ascertain whether peer-leaders can be recruited and trained to reduce take-up of smoking among their peers and encourage those peers to maintain their non-smoking status 2. To ascertain whether those peer-leaders may also impact on smoking cessation among peers 3. To assess the costs of the intervention against a range of outcomes using a 'costs & consequences' approach 4. To undertake a process evaluation and produce an intervention manual
Ethics approval(s)	Not provided at time of registration.
Health condition(s) or problem(s) studied	Public health, social medicine
Intervention	Smoking behaviour of Year 8 pupils, followed up for 2 years
Intervention type	Other
Primary outcome measure(s)	Change in smoking prevalence among the 'high risk' group (experimenters, ex-smokers and less than weekly smokers), change in prevalence in the year group. Smoking prevalence is operationalised as that proportion having smoking in the last 7 days.
Key secondary outcome measure(s)	Perception of norms regarding adolescent smoking, intention to quit.
Completion date	30/04/2005

Participant type(s)	Patient
Age group	Child
Sex	Not Specified
Target sample size at registration	750
Key inclusion criteria	Year 8 pupils in state secondary schools, where schools, parents and pupils agree to participation
Key exclusion criteria	Not provided at time of registration
Date of first enrolment	01/01/2001
Date of final enrolment	30/04/2005

School of Social Sciences

Cardiff
CF10 3WT
United Kingdom

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Output type	Details	Date created	Peer reviewed?	Patient-facing?
Results article	results:	10/05/2008	Yes	No
Results article	results	01/12/2009	Yes	No
Protocol article	protocol:	22/04/2005	Yes	No