SynthesisScientific reports2025
Relationship between smoking status and ulcerative colitis: a meta-analysis based on a case-control study.
Synthesis in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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.
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.
Who cites it
4 citing papers in PubMed.
- Knowledge Gaps, Treatment Preferences, and Unmet Clinical Needs Among Patients With Inflammatory Bowel Disease: A Cross-Sectional Study.The Kaohsiung journal of medical sciences · 2026Article
- Review
- Comparative effects of alternate tobacco products and traditional tobacco smoking on various organ/systems: A guide to regulators and health policy makers.Toxicology reports · 2025Review
- What Is the Real Impact of Smoking on Diseases Alleged to Benefit from It?European addiction research · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
Prior research has revealed an association between smoking, reduced ulcerative colitis (UC) risk, and improved disease severity among individuals with existing UC. Herein, we analysed the interaction between smoking habits and UC and its potential complexity, focusing on associations between smoking, incidence of UC, and therapeutic outcomes, via a meta-analysis of data from case-control studies. The PubMed, China Knowledge, WanFang, Web of Science, China Science and Technology Journal, Embase, and Scopus databases were searched, yielding nine case-control studies investigating the association between smoking and UC progression for inclusion. Compared to non-smoking or smoking cessation, smoking had a protective effect against UC, indicating that it may reduce the risk of developing UC; specifically, smoking was associated with a significant protective effect against UC compared to smoking cessation (pooled odds ratio (OR): 0.26, 95% confidence interval (CI): 0.21-0.32; P = 0.067, I
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Identifiers
What OpenQuestion holds
Registered trials
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.