Plain English Summary
Background and study aims
Young people may underestimate their risk of getting a sexually transmitted infection (STI) called chlamydia. This infection can be serious if untreated, leading to conditions such as infertility. Increasing young peoples' knowledge and understanding of this STI may increase their motivation to use condoms to protect themselves against it. The study aims to find out if after having a sex education lesson on chlamydia, young peoples' beliefs about the risk of chalmydia have changed and whether they are then more likely to use condoms during sexual intercourse.
Who can participate?
Pupils aged 13-16 from selected secondary schools across England
What does the study involve?
Schools are selected at random to give either just their usual teaching on STIs, or their usual teaching on STIs plus a specially designed lesson on chlamydia. All pupils are asked to complete three short questionnaires: one before the lessons, one straight after, and one three months later.
What are the possible benefits and risks of participating?
Pupils get the opportunity to be involved in shaping future sex education on STIs. Schools receive a £60 Amazon voucher in recognition of the time and support they have given to the study. There are not thought to be any risks involved with taking part.
Where is the study run from?
Coventry University (Applied research Centre in Heath and Lifestyle Interventions (ARC-HLI)) and the Health Protection Agency (Primary Care Unit) are running this study. Coventry University is the lead organisation.
When is the study starting and how long is it expected to run for?
January 2013 to December 2013
Who is funding the study?
The study has no funding. Researchers' time and overheads are being funded by their respective organisations.
Who is the main contact?
Mrs Katie Newby
Faculty of Health and Life Sciences
ARC-HLI / WF121
Increasing young adults' condom use intentions and behaviour through changing chlamydia risk and coping appraisals: a cluster randomised controlled trial of efficacy
Primary research question
1. Is the lesson effective in increasing young people's intentions to use condoms during vaginal sex with casual sexual partners?
Secondary research questions
2. Is the lesson effective in increasing young people's condom use during vaginal sex with casual sexual partners?
3. If the lesson is effective, are changes in young people's condom use intentions or behaviour due to changes in their chlamydia risk appraisals (perceived likelihood and severity) and/or coping appraisals (condom use response efficacy and self-efficacy)?
Coventry University Ethics Committee - approval pending
Two-arm cluster randomised controlled trial with a waiting-list control
Primary study design
Secondary study design
Cluster randomised trial
Patient information sheet
Not available in web format, please use the contact details to request a patient information sheet
In the experimental group, participants will receive the school's standard teaching on STIs plus a theory- and evidence-based lesson on chlamydia.
In the control group participants will receive just their school's usual teaching on STIs.
The teaching will last 40 minutes. The duration of follow-up is three months.
Primary outcome measure
Intention to use condoms during vaginal sex with casual sexual partners over the next three months
Secondary outcome measures
1. Use of condoms during vaginal sex with casual sexual partners over three months post delivery
2. Perceived likelihood of chlamydia
3. Perceived severity of chlamydia
4. Response efficacy for condom use
5. Self-efficacy for using condoms during vaginal sex with casual sexual partners over the next three months
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Aged 13-16 years old
2. Attending a secondary school in England which has a Sex and Relationships Education (SRE) protocol and curriculum
3. Have not received any previous formal education on STIs through school
Target number of participants
Participant exclusion criteria
Does not meet inclusion criteria
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Coventry University (UK)
Funding Body Type
private sector organisation
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Basic results (scientific)
2013 protocol in: https://www.ncbi.nlm.nih.gov/pubmed/23721352