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Case Study: Behaviour Change Interventions
Chlamydia Screening for Under-25s in Devon
diva service areas commissioned:
- Insight and Research
- Focus Groups
- Consultation with stakeholders
- Reporting
- Evaluation
- Creative
What was the Behaviour/Issue to Address:

- High rates of Chlamydia amongst young people.
- Low take up of Chlamydia screening and treatment.
- Gain better understanding of how Chlamydia services need to be developed to meet local need.
- Identify mechanisms to encourage young people to take up screening opportunities.
The Audience:
Sexually-active young people, aged 16-25, living in Devon. Specific focus was placed upon targeting young men from DE socio-economic groups in work or training.
Assumptions:
- Young people choose not to access Chlamydia screening due to a lack of understanding of the infection and its symptoms and consequences.
- Young people have a lack of understanding of the process involved in taking a Chlamydia test, and so attach negative preconceptions to it.
- Young people fear their parent/guardian will find out if they have Chlamydia and so choose not to take a test.
- Young people will only access screening services if they are available locally.
- Young people don’t want to discuss Sexually Transmitted Infections (STIs) or Chlamydia openly.
Audience Insight Revealed:
Quantitative data was collected through postal and online questionnaires returned by 671 respondents (40% male, 60% female, 60% 16-19). Qualitative data was gathered through six focus group consultations with members of the target group (totaling 64 individuals), as well as interviews with a sample of eleven service delivery agents from sexual health clinics and youth services.
Key findings included:
- 92% were aware of the term ‘Chlamydia’, but lower awareness of symptoms and treatment.
- Local GPs and sexual health and contraceptive clinics are preferred sources of information and screening. Pharmacies are less popular.
- Leaflets are the preferred format for information on Chlamydia and sexual health, closely followed by websites.
- Young people want to talk about sexual health with ‘experts’ and discuss their views.
- Low awareness of notification options for obtaining results.
- Face-to-face at the GP surgery or clinic is the preferred method of receiving results (42% overall, 50% male), usually at the same location as the test was taken. This enables the service delivery agent to explain the result and treatment if a result is positive.
- Letter (26%), text (21%) and email (10%) are also accepted options for receiving results, with a preference shown for email, as this requires a password to access.
- Low awareness of how Chlamydia is transmitted and the frequent absence of any symptoms.
- Partial awareness of long-term consequences of having Chlamydia, but only in terms of reduced fertility.
- Some awareness of the importance of testing and for treatment upon detection.
- High awareness of protection against sexually transmitted infections through correct condom-use.
Understanding the Situation:
- Although there is some understanding of what Chlamydia means, knowledge of the common lack of symptoms and consequences of not treating it is less prevalent.
- Awareness of the options for receiving test results needs be increased, to reinforce the message that testing is simple, straightforward and can fit in with a young person’s lifestyle.
Consumer Behaviour Drivers:
- Stigma attributed to taking a test.
- Preference for not knowing own Chlamydia status, being unaware of infection removes the need to worry about it.
- Carrying condoms or having screening leads to negative labeling.
Barriers to Change:
- Perceptions of others.
- Accessibility and availability of testing.

Campaign/Intervention Objectives:
- Raise self-esteem and encourage informed decision-making.
- Raise awareness of the long-term consequences of Chlamydia.
- Address myths surrounding testing methods.
- Boost knowledge of testing locations, particularly Pharmacies
- Increase number of young people, particularly young men to have screening.
Behaviour Change Objectives:
- Increase take-up of Chlamydia screening and treatment.
- Encourage condom-use to protect against sexually transmitted infections.
- Create a new social norm - remove the stigma and embarrassment factor from seeking a Chlamydia test and carrying condoms.
Campaign Core Products:
- Recognisable, young-person-friendly brand to ‘badge’ the Chlamydia screening programme as part of a wider sexual health service.
- Dedicated website for the campaign.
- Branded, consistent collateral to generate awareness of the Chlamydia screening programme and testing locations, including posters and leaflets.
- Wider availability of home testing kits to pharmacies, clinics etc.
Benefits:
- Co-ordinated information that young people recognise as part of sexual health services.
- Information and branding that appeals to young people and encourages them to visit screening locations and sexual health services in general.
- Less embarrassment associated with the issue, due to increased promotion in public locations.
- Accessible information in a format young people are receptive to.
Results:
The insight stage of the campaign has now been completed, with pre-testing work currently in progress.
Evaluation:
Data from service delivery agents will be collated on numbers of young people accessing screening and treatment and reviewed.
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