Evidence mapPaperPMID 39389604Full record

SynthesisBMJ open2024

Assessment of the quality and content of clinical practice guidelines for vitamin D and for immigrants using the AGREE II instrument: global systematic review.

Said Yousef, Lamia Hayawi, Alomgir Hossain, Nazmun Nahar, Doug Manuel, Ian Colman, Emmanuel Papadimitropoulos, MoezAlIslam E Faris, Leenah Abdelrazeq, George A Wells

Abstract readSystematic Review
In one paragraph

Synthesis in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Said YousefSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada sabde029@uottawa.ca.ORCID 0000-0002-4968-6918
Lamia HayawiChildren's Hospital of Eastern Ontario, Ottawa, Ontario, Canada.ORCID 0000-0002-0153-5926
Alomgir HossainThe Hospital for Sick Children, Toronto, Ontario, Canada.ORCID 0000-0002-7614-0072
Nazmun NaharUniversity of Ottawa Heart Institute, Ottawa, Ontario, Canada.ORCID 0009-0000-5685-3318
Doug ManuelClinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.ORCID 0000-0003-0912-0845
Ian ColmanSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.ORCID 0000-0001-5924-0277
Emmanuel PapadimitropoulosEli Lilly Canada, Toronto, Ontario, Canada.ORCID 0000-0002-3688-523X
MoezAlIslam E FarisDepartment of Clinical Nutrition and Dietetics, Faculty of Allied Medical Sciences, Applied Sciences Private University, Amman, Jordan.ORCID 0000-0002-7970-2616
Leenah AbdelrazeqHealth Sciences, Carleton University, Ottawa, Ontario, Canada.ORCID 0009-0009-3005-306X
George A WellsSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.ORCID 0000-0002-2289-9139

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWorldwide, more immigrants experience vitamin D (vitD) deficiency than non-immigrants. Recommendations in current clinical practice guidelines (CPGs) concerning vitD are inadequate to address vitD deficiency among immigrants, and there are concerns regarding the quality of guidance in these CPGs.

objectivesThis study aimed to identify and evaluate the quality of published CPGs addressing vitD and immigrants' health using the Appraisal of Guidelines for Research and Evaluation-II (AGREE II) tool and clarify the recommendations pertaining to vitD and immigrant populations in these CPGs.

methodsWe performed a systematic search to identify the most recent CPGs across various databases (Ovid MEDLINE ALL, Embase and Turning Research Into Practice), guideline repositories and grey literature. Two reviewers independently conducted study selection and data abstraction and evaluated the quality of the included guidelines using the AGREE II tool.

resultsWe identified 25 relevant CPGs; 21 focused on vitD and 4 covered immigrants' health. Around one-quarter of the included CPGs were high quality (≥60% in at least four of the six domains, including 'rigour of development'). The highest mean scores among the six AGREE II domains were for 'clarity of presentation' and 'scope and purpose'. About 4.8% (1/21) of the CPGs on vitD had immigrant-related recommendations. VitD recommendations were emphasised in one out of the four immigrant health CPGs (25%). CPGs covering immigrants' health and vitD were inadequately systematically appraised. Moreover, recommendations regarding vitD were insufficient to address the growing epidemic of vitD deficiency among immigrant populations.

conclusionThe insufficient recommendations for vitD fail to address the rising vitD deficiency among immigrants, highlighting a critical gap in healthcare provisions. Urgent national and international efforts are needed to develop comprehensive CPGs, bridging research, policy and practice disparities. Future guidelines must prioritise routine vitD screening, supplementation protocols for vulnerable immigrant groups, and culturally appropriate interventions to improve health outcomes for immigrants globally. PROSPERO REGISTRATION NUMBER: CRD42021240562.

Indexed as

Emigrants and ImmigrantsPractice Guidelines as TopicVitamin D DeficiencyHumansVitamin DVitamin Dhealth policynutritionsystematic review

Identifiers

PMID39389604
PMCPMC11474700

What Socratic holds

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LicenceCC BY-NC
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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 Socratic graph.