Evidence map›Paper›PMID 34345253›Full record

ArticleTherapeutic advances in musculoskeletal disease2021

Underweight and obesity are strong predictors of clinical outcomes in patients with ankylosing spondylitis: data from the Smart-phone SpondyloArthritis Management System.

Lidong Hu, Xiaojian Ji, Yiwen Wang, Siliang Man, Xingkang Liu, Lei Wang, Jian Zhu, Jidong Cheng, Feng Huang

Open access · goldAbstract read
In one paragraph

Article in Therapeutic advances in musculoskeletal disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Review
  5. Effects of depression on patients suffering from ankylosing spondylitis: a comparative study.Sao Paulo medical journal = Revista paulista de medicina · 2025
    Article
  6. Article
  7. Review
  8. Article
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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 2 institutions in 1 country.

Lidong HuXiamen Key Laboratory of Translational Medicine for Nucleic Acid Metabolism and Regulation, Xiang'an Hospital of Xiamen University, Xiamen, Fujian, China.ORCID https://orcid.org/0000-0001-5004-187X
Xiaojian JiDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Yiwen WangDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Siliang ManDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Xingkang LiuDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Lei WangDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Jian ZhuDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, Beijing, China.
Jidong ChengXiamen Key Laboratory of Translational Medicine for Nucleic Acid Metabolism and Regulation, Xiang'an Hospital of Xiamen University, Xiamen, Fujian, China.
Feng HuangDepartment of Rheumatology and Immunology, the First Medical Center, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
Chinese PLA General Hospital · CNXiamen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to examine the impact of underweight, overweight and obesity on clinical outcomes and treatment responses to biologics in Chinese patients with ankylosing spondylitis (AS).

methodsBody mass index (BMI) was available in 1074 patients from the Smart-phone SpondyloArthritis Management System. Patients were categorized into four groups based on BMI: underweight, normal weight, overweight and obesity. Multivariable median regression analyses examined the effect of underweight and obesity on clinical outcomes and treatment response to biologics.

resultsAmong 1074 patients with AS, normal weight accounted for 49.1%, while underweight, overweight, and obesity for 8.1%, 30.1%, and 12.0%, respectively. Compared to patients with normal weight, patients with underweight, overweight and obesity had an increased disease activity, while patients with underweight and obesity had a significantly poor Bath Ankylosing Spondylitis Functional Index and Assessment of Spondyloarthritis International Society Health Index scores. For tumor necrosis factor (TNF)-α inhibitor users, BMI was found to be negatively correlated with changes in disease activity in the multivariate regression model (all

conclusionsBoth underweight and obesity except for overweight were associated independently with worse disease activity, physical function and health status. Overweight and obesity might impact on treatment responses to biologics in patients with AS. This argues that weight management, to maintain it at a normal level, should be one of the disease management strategies in patients with AS.

Indexed as

ankylosing spondylitisdisease activityobesitytreatment responseunderweight

Identifiers

PMID34345253
PMCPMC8280843
OpenAlexW3180070287

What OpenQuestion holds

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Registered trials

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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.