Peer-led Intervention to Promote Chlamydia Testing

Dr Jo Crichton's PhD research investigated approaches for promoting the uptake of chlamydia testing among men and women aged 16-24 in the UK.

The study had two aims:

1) To carry out a systematic review on sources of variation in the prevalence of chlamydia infection among young people.

2) To examine prevalence of chlamydia infection among 17 year olds using data from the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort.  For more information, please visit the ALSPAC website.

2) To investigate whether peer-led interventions are likely to be an acceptable, feasible and effective means to promote chlamydia testing among young people. This involved qualitative research into the social context of chlamydia testing and communication about sexual health among 16-24 year olds. Dr Crichton took a grounded theory approach to this part of the study.


  1. Crichton, J., Hickman, M., Campbell, R. et al. Socioeconomic factors and other sources of variation in the prevalence of genital chlamydia infections: A systematic review and meta-analysis. BMC Public Health 15, 729 (2015) doi:10.1186/s12889-015-2069-7

  2. Crichton J, Hickman M, Campbell R, Heron J, Horner P, Macleod J (2014) Prevalence of Chlamydia in Young Adulthood and Association with Life Course Socioeconomic Position: Birth Cohort Study. PLoS ONE 9(8): e104943.

  3. Loaring JHickman MOliver I, et al. Could a peer-led intervention increase uptake of chlamydia screening? A proof of principle pilot study. 

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