Evidence map›Paper›PMID 34538269›Full record

ArticleJournal of translational medicine2021

Longitudinal analysis of symptom-based clustering in patients with primary Sjogren's syndrome: a prospective cohort study with a 5-year follow-up period.

Jennifer Jooha Lee, Young Jae Park, Misun Park, Hyeon Woo Yim, Sung Hwan Park, Seung-Ki Kwok

Abstract read
In one paragraph

Article in Journal of translational medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Insights into Patient Heterogeneity in Sjögren's Disease.International journal of molecular sciences · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. What can patients tell us in Sjögren's syndrome?Rheumatology and immunology research · 2024
    Review
  11. Review
  12. Health-related quality of life profiles in adolescents and young adults with chronic conditions.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2023
    Article
  13. Review
  14. 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.

Jennifer Jooha LeeDivision of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Young Jae ParkDivision of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Misun ParkDepartment of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Hyeon Woo YimDepartment of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Sung Hwan ParkDivision of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Seung-Ki KwokDivision of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, 06591, Republic of Korea. Seungki73@catholic.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSjogren's syndrome (SS) is a heterogenous disease with various phenotypes. We aimed to provide a relevant subclassification based on symptom-based clustering for patients with primary (p) SS.

methodsData from patients in a prospective pSS cohort in Korea were analysed. Latent class analysis (LCA) was performed using patient reported outcomes, including pain, fatigue, dryness, and anxiety/depression. Clinical and laboratory differences between the classes were analysed. Latent transition analysis (LTA) was applied to the longitudinal data (annually for up to 5 years) to assess temporal stability of the classifications.

resultsLCA identified three classes among 341 patients with pSS (i.e., 'high symptom burden', 'dryness dominant', 'low symptom burden'). Each group had distinct laboratory and clinical phenotypes. LTA revealed that class membership remained stable over time. Baseline class predicted future salivary gland function and damage accrual represented by a Sjogren's syndrome disease damage index.

conclusionSymptom-based clustering of heterogenous patients with primary Sjogren's syndrome provided a relevant classification supported by temporal stability over time and distinct phenotypes between the classes. This clustering strategy may provide more homogenous groups of pSS patients for novel treatment development and predict future phenotypic evolvement.

Indexed as

Sjogren's SyndromeCluster AnalysisCohort StudiesFollow-Up StudiesHumansProspective StudiesCluster analysisLatent class analysisSjogren’s syndrome

Identifiers

PMID34538269
PMCPMC8451081

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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.