Evidence map›Paper›PMID 16326852›Full record

ArticleSexually transmitted infections2005

Factors affecting vaginal pH levels among female adolescents attending genitourinary medicine clinics.

L Brabin, S A Roberts, E Fairbrother, D Mandal, S P Higgins, S Chandiok, P Wood, G Barnard, H C Kitchener

Open access · bronzeAbstract read
In one paragraph

Article in Sexually transmitted infections, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 60 citations in OpenAlex.

  1. Trial
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  12. Acid Stress Response Mechanisms of Group B Streptococci.Frontiers in cellular and infection microbiology · 2017
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  13. Article
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  17. The aetiology of bacterial vaginosis.Journal of applied microbiology · 2011
    Review
  18. Article
  19. Article
  20. 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

9 authors at 1 institution in 1 country.

L BrabinAcademic Unit of Obstetrics and Gynaecology and Reproductive Health Care, Research floor, St Mary's Hospital, Whitworth Park, Manchester M13 0JH, UK. loretta.brabin@man.ac.uk
S A Roberts
E Fairbrother
D Mandal
S P Higgins
S Chandiok
P Wood
G Barnard
H C Kitchener
St Mary's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesVaginal pH is related to hormonal status, and adolescents experience disturbed hormonal patterns following menarche. We assessed hormonal factors and risk of abnormal vaginal pH and bacterial vaginosis (BV) among adolescents attending genitourinary medicine (GUM) clinics.

methodsIn a cross sectional study adolescents within 5 years of menarche, < or =17 years, or with oligo-amenorrhoea were recruited. Vaginal pH and BV were assessed and among those not using hormonal contraceptives, estrone-3-glucuronide (E3G) and pregnanediol-3alpha-glucuronide (P3G) concentrations were measured.

resultsAmong 102 adolescents, 59.8% (61) had a high vaginal pH (>4.5), which was higher than the prevalence of BV, detected in 33% (34). No association was found between presence of sexually transmitted infections (STI) and vaginal pH. In logistic regression, after controlling for BV and condom use, vaginal pH was positively associated with cervical ectopy (OR = 2.5; 95% CI 1.0 to 6.6, p = 0.05) and STI treatment history (OR = 2.5; 95% CI 0.9 to 6.5, p = 0.07), and negatively associated with use of Depo-Provera (OR = 0.1; 95% CI 0.03 to 0.6, p = 0.003) and recent onset (<12 months) of sexual activity (OR = 0.2; 95% CI 0.1 to 0.7, p = 0.004). Among 23 adolescents not using hormonal contraceptives, a high pH occurred more often in abnormal compared to normal menstrual cycles (OR = 10.8; 95% CI 1.4 to 85.4; p = 0.026). E3G concentrations were inversely correlated with vaginal pH in the follicular phase (Spearman: r = 0.51; p = 0.024).

conclusionsEctopy and abnormal menstrual cycles are common features of adolescence. Their presence is associated with increased risk of abnormal pH, and may also predispose to BV.

Indexed as

AdolescentEpidemiologic MethodsFemaleHumansHydrogen-Ion ConcentrationSexual PartnersSpecimen HandlingVaginaVaginosis, Bacterial

Identifiers

PMID16326852
PMCPMC1745063
OpenAlexW2123672984

What OpenQuestion holds

Textmetadata
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.