Evidence map›Paper›PMID 40948796›Full record

SynthesisFrontiers in immunology2025

Comorbidities in primary cicatricial alopecia: a systematic review and meta-analysis.

Tanat Yongpisarn, Kasama Tejapira, Poonkiat Suchonwanit

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

3 authors.

Tanat YongpisarnDivision of Dermatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Kasama TejapiraDivision of Dermatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Poonkiat SuchonwanitDivision of Dermatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Primary cicatricial alopecia (PCA) is known to be associated with various comorbidities; however, findings regarding the likelihood of specific comorbidities in PCA patients have been inconsistent. Objective: This study aimed to assess the prevalence and odds of specific comorbidities in patients with PCA compared to controls, and to explore the distribution of comorbidities across various types of PCA. Methods: Electronic searches were conducted using PubMed, Embase, and Scopus from the dates of their inception until July 2024. A total of 116 studies with 33,494 PCA patients that reported data allowing for the calculation of odds ratios (OR) or prevalences of certain comorbidities in PCA patients were included. Results: Systemic lupus erythematosus is more prevalent among patients with lichen planopilaris (LPP) [OR 3.10 (95% confidence interval: 2.24-4.29), prevalence 2%], frontal fibrosing alopecia (FFA) [OR 6.92 (2.73-17.56), prevalence 5%], and central centrifugal cicatricial alopecia (CCCA) [OR 3.13 (1.03-9.49), prevalence 5%]. Hypothyroidism is more prevalent among patients with LPP [OR of 1.73 (1.24-2.42), prevalence 17%] and FFA [OR 1.86 (1.36-2.55), prevalence 19%]. LPP patients are prone to having dermatological diseases such as atopic dermatitis [OR 3.96 (1.14-13.81), prevalence 9%], lichen planus [OR 19.21 (1.47-251.02), prevalence 8%], psoriasis [OR 4.75 (2.04-11.06), prevalence 3%], and rosacea [OR 4.62 (2.96-7.19), prevalence 5%], while FFA patients are prone to having allergic contact dermatitis [OR 3.19 (1.44-7.08), prevalence 41%] and rosacea [OR 2.37 (1.72-3.29), prevalence 16%]. Coronary artery disease is found to be more common in LPP than controls [OR 1.63 (1.43-1.86), prevalence 8%], while dyslipidemia is more common among FFA [OR 1.41 (1.06-1.88), prevalence 20%] and CCCA [OR 4.46 (1.01-19.75), prevalence 54%] than controls, and diabetes mellitus is more prevalent among CCCA than controls [OR 1.67 (1.03-2.69), prevalence 26%]. While skin cancer [OR 2.22 (1.33-3.70), prevalence 2%] and melanoma [OR 4.46 (1.70-11.76), prevalence 1%] were found to be more common in LPP than controls, rheumatoid arthritis [OR 1.65 (1.09-2.51), prevalence 4%] was found to be more common in FFA than controls, and allergic rhinitis [OR 11.77 (1.55-89.24), prevalence 24%] and anxiety [OR 4.69 (1.29-16.98), prevalence 17%] were found to be more common in CCCA than controls. Conclusions: Patients with PCA are at higher risk of developing a wide range of comorbidities. Physicians should remain vigilant and conduct thorough investigations when clinical clues are present. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=564852, identifier CRD42024564852.

Indexed as

AlopeciaCicatrixComorbidityHumansLichen PlanusLupus Erythematosus, SystemicPrevalenceassociated diseasesautoimmune diseasescentral centrifugal cicatricial alopeciafrontal fibrosing alopeciahair lossimmune-mediated alopecialichen planopilarisscarring alopecia

Identifiers

PMID40948796
PMCPMC12426186

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.