Evidence map›Paper›PMID 32880827›Full record

SynthesisClinical rheumatology2021

Influence of smoking and obesity on treatment response in patients with axial spondyloarthritis: a systematic literature review.

Pablo Antonio Zurita Prada, C L Urrego Laurín, C A Guillén Astete, S Kanaffo Caltelblanco, V Navarro-Compán

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Clinical rheumatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

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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

5 authors.

Pablo Antonio Zurita PradaRheumatology Department, Moncloa University Hospital, European University of Madrid, Madrid, Spain. pzprada@yahoo.es.
C L Urrego LaurínRheumatology Department, Moncloa University Hospital, European University of Madrid, Madrid, Spain.
C A Guillén AsteteRheumatology Department, Moncloa University Hospital, European University of Madrid, Madrid, Spain.
S Kanaffo CaltelblancoRheumatology Department, Moncloa University Hospital, European University of Madrid, Madrid, Spain.
V Navarro-CompánRheumatology Department, La Paz University Hospital, Institute for Health Research (IdiPaz), Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To assess whether smoking and obesity are predictors of poor treatment response in patients with axial spondyloarthritis (axSpA). A systematic literature review was performed by searching in MEDLINE and EMBASE up to June 2019 with a strategy based on the PICO approach: Population: patients with axSpA; Intervention or exposure: smoking or obesity; Comparison: non-smokers (for smoking) and normal-weight individuals (for obesity); and Outcome: any response criteria currently validated for axSpA. The 2009 Oxford Centre for Evidence-based Medicine levels were used for assessing the studies quality. Out of 1873 references retrieved, 46 studies were selected for full-text review and 12 for data extraction: six stratified patients by smoking and six by obesity. All were longitudinal observational studies, except one, which was cross-sectional. Overall, these studies included 5291 patients (3917 for smoking and 1333 for obesity), and all these patients were on anti-tumor necrosis factor (anti-TNF) therapy. The quality of evidence was graded as level 2b except that from the cross-sectional study which was graded level 4. For smoking, the evidence found is inconsistent: two studies finding negative effects in response to anti-TNF while the other four found no differences in clinical response to this therapy. Regarding obesity, the evidence is more consistent: five of the six studies describing a negative influence in response to anti-TNF. According to the scientific evidence in patients with axSpA, obesity is associated with a more unsatisfactory response to anti-TNF therapy. A poorer response in smokers has yet to be demonstrated. Key Points • Identifying predictors of treatment response in axSpA, especially those that are modifiable, is relevant. • Obesity increases the risk of poorer response to anti-TNF agents in patients with axSpA. • Scientific evidence for smoking habit as a predictor of treatment response in axSpA is inconclusive.

Indexed as

SpondylarthritisSpondylitis, AnkylosingCross-Sectional StudiesHumansObesitySeverity of Illness IndexSmokingTumor Necrosis Factor-alphaTumor Necrosis Factor-alphaAnkylosing spondylitisAxial spondyloarthritisBody mass indexClinical responseEfficacyObesityOutcomeOverweightPredictorsTobacco

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.