Evidence map›Paper›PMID 23168754›Full record

ArticleObstetrics and gynecology2012

Effect of sexual debut on vaginal microbiota in a cohort of young women.

Caroline M Mitchell, David N Fredricks, Rachel L Winer, Laura Koutsky

Abstract read
In one paragraph

Article in Obstetrics and gynecology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Vaginal microbiota stability over 18 months in young student women in France.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024
    Trial
  4. Trial
  5. Trial
  6. Review
  7. Review
  8. Article
  9. The Vaginal Microbiome and Reproductive Health in Adolescents and Adults.Journal of pediatric and adolescent gynecology · 2025
    Review
  10. Understanding the Associations of Urogenital Microbiomes With Fertility and In Vitro Fertilization.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Review
  11. Article
  12. Review
  13. The association between lifestyle factors and the composition of the vaginal microbiota: a review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024
    Review
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  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

4 authors.

Caroline M MitchellDepartment of Obstetrics and Gynecology and Fred Hutchinson Cancer Research Institute, University of Washington, Seattle, Washington, USA. camitch@uw.edu
David N Fredricks
Rachel L Winer
Laura Koutsky

Funding

Translational Bioimaging Core Shared ResourceP30CA015704 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI Marian Esvelt · 1985 to 2026
$296.4M
The Role of Uncultivated Bacteria in Bacterial VaginosisR01AI061628 · NIAID · FRED HUTCHINSON CANCER RESEARCH CENTER · PI FREDRICKS, DAVID NEAL · 2006 to 2016
$6.6M
ACQUISITION &NATURAL HISTORY OF GENITAL HPV INFECTIONSR01AI038383 · NIAID · UNIVERSITY OF WASHINGTON · PI KOUTSKY, LAURA A · 1995 to 2009
$6.0M
Female Genital Innate Immune Response to Vaginal MicrobiotaK08AI087969 · NIAID · UNIVERSITY OF WASHINGTON · PI MITCHELL, CAROLINE M · 2010 to 2014
$636k
NCI NIH HHS P30 CA015704NIAID NIH HHS 1K08AI087969-01NIAID NIH HHS K08 AI087969NIAID NIH HHS R01 AI038383NIAID NIH HHS R01AI038383NIAID NIH HHS R01 AI061628
6 · The paper itself

Abstract

objectiveBacterial vaginosis is uncommon in women who are virgins. We estimated effects of sexual debut on vaginal bacterial colonization.

methodsWomen who were virgins and aged 18-22 years enrolled in a study of human papillomavirus acquisition were followed every 4 months for up to 2 years. Vaginal swabs from before and after sexual debut or two independent visits for those remaining virgins were tested by quantitative polymerase chain reaction for Lactobacillus crispatus, Lactobacillus jensenii, Lactobacillus iners, Gardnerella vaginalis, and the bacterial vaginosis-associated species Atopobium vaginae, Megasphaera species, Leptotrichia species, Sneathia species, and bacterial vaginosis-associated bacterium-1, -2, and -3.

resultsWe evaluated 97 women: 71 who became sexually active and 26 who remained virgins. At first sampling, 22 of 26 (85%) women who remained virgins were colonized with Lactobacillus species compared with 22 of 26 (85%) at follow-up (P>.99). G vaginalis was present in 12 of 26 (46%) initially and 11 of 26 (42%) at follow-up (P>.99). Among women who became sexually active, colonization with Lactobacillus species remained stable: 65 of 71 (92%) compared with 66 of 71 (93%) (P>.99), whereas colonization with G vaginalis increased (28 of 71 [39%] compared with 40 of 71 [56%]; P=.02). Among women who did not initiate sexual activity during the study, two of 26 (8%) had any bacterial vaginosis-associated species detected at both the first and second visits (P>.99). Among women who became sexually active during the study, 15 of 71 (21%) were colonized with bacterial vaginosis-associated species initially compared with 13 of 71 (18%) after sexual debut (P=.77).

conclusionsAmong women who were virgins, vaginal colonization with bacterial vaginosis-associated bacterial species is uncommon and does not change after sexual debut.

Indexed as

Sexual BehaviorAdolescentCohort StudiesFemaleGardnerella vaginalisHumansLactobacillusVaginaVaginosis, BacterialYoung Adult

Identifiers

PMID23168754
PMCPMC3548407

What OpenQuestion holds

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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.