Evidence map›Paper›PMID 34405817›Full record

SynthesisThe Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology2021

Risk Factors for Vitamin D Deficiency in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis.

Shanzhen Shi, Jiaxing Feng, Lixiang Zhou, Yu Li, Huaxiu Shi

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 40% 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

8 citing papers in PubMed, 8 citations in OpenAlex.

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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 at 1 institution in 1 country.

Shanzhen ShiDepartment of Gastroenterology, Zhongshan Hospital Xiamen University, Xiamen, Fujian Province, People's Republic of China.
Jiaxing FengDepartment of Gastroenterology, Zhongshan Hospital Xiamen University, Xiamen, Fujian Province, People's Republic of China.
Lixiang ZhouDepartment of Gastroenterology, Zhongshan Hospital Xiamen University, Xiamen, Fujian Province, People's Republic of China.
Yu LiDepartment of Nephrology, Zhongshan Hospital Xiamen University, Xiamen, Fujian Province, People's Republic of China.
Huaxiu ShiDepartment of Gastroenterology, Zhongshan Hospital Xiamen University, Xiamen, Fujian Province, People's Republic of China.
Zhongshan Hospital of Xiamen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo identify risk factors for hypovitaminosis D in inflammatory bowel disease and conduct a comprehensive systematic review with meta-analysis to quantify the impact on vitamin D deficiency.

methodsWe conducted a literature search of studies through PubMed, Embase, Cochrane Library, and Web of Science. In addition, relevant articles were searched manually. Studies were included if the odds ratios (OR) and 95% CI of each risk factor were reported or could be calculated. We will use the fixed-effects or random-effects model to estimate the pooled effect.

resultsOut of 1018 articles, 25 eligible studies were identified, including 5826 participants. The risk factors associated with hypovitaminosis D were non-Caucasian (OR: 3.79, 95% CI: 2.68-5.34), Crohn's disease (OR: 1.38, 95% CI: 1.21-1.56), disease activity (OR: 1.85, 95% CI: 1.61-2.13), inflammatory bowel disease-related surgery (OR: 1.61, 95% CI: 1.38-1.89), exposure to steroid (OR: 1.61, 95% CI: 1.28-2.03), and biologics (OR: 1.78, 95% CI: 1.48-2.14). In 30 ng/mL and adjusted OR subgroup, male (OR: 1.84, 95% CI: 1.47-2.31) and winter season (OR: 2.49, 95% CI: 1.69-3.67) also were risk factors, respectively. 5-aminosalicylic acid (OR: 1.10, 95% CI: 0.74-1.63) and smoking (OR: 1.19, 95% CI: 0.98-1.45) were unrelated to vitamin D deficiency.

conclusionsFor vitamin D deficiency in inflammatory bowel disease, non-Caucasian, Crohn's disease, disease activity, surgery, exposure to steroid and biologics, males are risk factors, while 5-aminosalicylic acid and smoking are not. The relationship between body mass index, winter season, exposure to immunomodulators, and vitamin D deficiency remains unclear.

Indexed as

ColitisBiological ProductsCrohn DiseaseHumansInflammatory Bowel DiseasesMaleMesalamineQuality of LifeRisk FactorsVitamin DVitamin D DeficiencyVitaminsBiological ProductsMesalamineVitamin DVitamins

Identifiers

PMID34405817
PMCPMC8975355
OpenAlexW3035386311

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.