Evidence map›Paper›PMID 28740427›Full record

ArticleJournal of pain research2017

Vulvodynia is not created equally: empirical classification of women with vulvodynia.

Meryl Alappattu, Georgine Lamvu, Jessica Feranec, Kathryn Witzeman, Michael Robinson, Andrea Rapkin

Abstract read
In one paragraph

Article in Journal of pain research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Vulvodynia - A contemporary understanding and practical approach in primary care settings.Malaysian family physician : the official journal of the Academy of Family Physicians of Malaysia · 2024
    Review
  7. 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.

Meryl AlappattuDepartment of Physical Therapy.
Georgine LamvuDivision of Surgery, Gynecology Section, Veteran Affairs Medical Center.
Jessica FeranecDivision of Surgery, Gynecology Section, Veteran Affairs Medical Center.
Kathryn WitzemanWomen's Integrated Health Program, Department of OBGYN, Denver Health Medical Center, Denver, CO.
Michael RobinsonCenter for Pain Research and Behavioral Health, University of Florida, Gainesville.
Andrea RapkinDepartment of Obstetrics and Gynecology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.

Funding

Rehabilitation Research Career Development ProgramK12HD055929 · NICHD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI BROWN, DAVID A · 2007 to 2021
$11.7M
Refining Diagnostic Criteria of a Pain Disorder: Vulvar Vestibulitis SyndromeK23HD053631 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ZOLNOUN, DENNIZ A · 2006 to 2010
$686k
NICHD NIH HHS K12 HD055929NICHD NIH HHS K23 HD053631
6 · The paper itself

Abstract

backgroundVulvodynia classification is based on the sensory dimensions of pain and does not include psychological factors associated with the pain experience and treatment outcomes. Previous work has shown that individuals with chronic pain can be classified into subgroups based on pain sensitivity, psychological distress, mood, and symptom severity.

objectiveThe aim of this study was to identify distinct subgroups of women with vulvodynia enrolled in the National Vulvodynia Registry. We hypothesized that women with vulvodynia can be clustered into subgroups based on distress and pain sensitivity.

designA cross-sectional study.

methodsWe conducted an exploratory hierarchical agglomerative cluster analysis using Ward's cluster method and squared Euclidean distances to identify unique subgroups based on baseline psychological distress and pain sensitivity. The variables included the catastrophizing subscale of the Coping Strategies Questionnaire, the Beck Depression Inventory, the State Trait Anxiety Index-Trait scale, McGill Pain Questionnaire-Affective subscale, and vulvar and pelvic muscle pressure pain sensitivity. SUBJECTS: Eight sites enrolled women who presented with vaginal or vulval pain of at least 3-month duration.

resultsTwo distinct subgroups, high pain sensitivity with high distress (n=27) and low pain sensitivity with low distress (n=100), emerged from the cluster analysis. Validation indicated that subgroups differed in terms of clinical pain intensity, sensory aspects of pain, and intercourse pain.

conclusionEmpirical classification indicates that unique subgroups exist in women with vulvodynia. Providers should be aware of the heterogeneity of this condition with respect to pain-related distress and pain sensitivity.

Indexed as

chronic vulvar painclassificationNational Vulvodynia Registrypatient subgroupspelvic painvulvodynia

Identifiers

PMID28740427
PMCPMC5505540

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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.