Evidence map›Paper›PMID 25153124›Full record

ArticlePloS one2014

Prevalence of chlamydia in young adulthood and association with life course socioeconomic position: birth cohort study.

Joanna Crichton, Matthew Hickman, Rona Campbell, Jon Heron, Paddy Horner, John Macleod

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Joanna CrichtonSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Matthew HickmanSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Rona CampbellSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Jon HeronSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Paddy HornerSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
John MacleodSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
University of Bristol · GB

Funding

British Heart Foundation MR/KO232331/1Cancer Research UKMedical Research Council MC_PC_15018Medical Research Council MR/K023233/1Wellcome Trust 092731Wellcome Trust 102215
6 · The paper itself

Abstract

backgroundFew estimates are available of chlamydia prevalence in the general population. Existing studies have limited scope to explore potential selection bias or associations with socioeconomic position.

methodsWe examined the prevalence of Chlamydia trachomatis infection and associations with life-course socioeconomic position in the Avon Longitudinal Study of Parents and Children in England. Chlamydia infection was measured through nucleic acid amplification test of urine specimens.

results4864 (51%) of those invited attended the clinic (mean age 17.8; SD 0.37 years). (60%) provided a urine specimen. Prevalence was 1.0% (95% CI 0.6 to 1.6) among participants reporting sexual activity. Risk of infection was strongly associated with life course social disadvantage and with recent sexual behaviour. After adjustment for other measures of disadvantage and for sexual behaviour the strongest risk factors for infection were lower maternal educational attainment (OR 9.1 (1.1, 76.7)) and lower participant educational attainment at age 11 (OR 5.0 (1.5, 16.5)). Both clinic attendance and agreement to test were lower amongst the disadvantaged. Adjustment for selective participation based on detailed information on non-participants approximately doubled prevalence estimates. Prevalence was higher in sexually active women (1.4% (0.7 to 2.4) than men (0.5% (0.1 to 1.3)).

conclusionsChlamydia prevalence in this general population sample was low even after adjustment for selective participation in testing. These estimates of prevalence and patterns of association with socioeconomic position may both reflect recent screening efforts. Prevalence was higher amongst the disadvantaged who were also less likely to engage in testing. Our results reveal the importance of monitoring and addressing inequalities in screening programme participation and outcomes.

Indexed as

AdolescentAdultChlamydia InfectionsCohort StudiesEducational StatusEnglandFemaleHumansMalePrevalenceSexual BehaviorSocioeconomic Factors

Identifiers

PMID25153124
PMCPMC4143219
OpenAlexW2029518259

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.