Evidence map›Paper›PMID 19675194›Full record

ArticleDiabetes care2009

Vitamin D levels in subjects with and without type 1 diabetes residing in a solar rich environment.

Lindsey Bierschenk, John Alexander, Clive Wasserfall, Michael Haller, Desmond Schatz, Mark Atkinson

Open access · hybridAbstract read
In one paragraph

Article in Diabetes care, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
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  11. The Challenges of Identifying Environmental Determinants of Type 1 Diabetes: In Search of the Holy Grail.Diabetes, metabolic syndrome and obesity : targets and therapy · 2020
    Review
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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

6 authors at 1 institution in 1 country.

Lindsey BierschenkDepartment of Pathology, University of Florida, Gainesville, Florida, USA.
John Alexander
Clive Wasserfall
Michael Haller
Desmond Schatz
Mark Atkinson
University of Florida · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePrevious studies, largely in northern Europe, have suggested an association between type 1 diabetes and reduced serum 25-hydroxy(OH) vitamin D levels, a concept we tested in individuals residing in a solar-rich region (Florida). RESEARCH DESIGN AND

methodsSerum samples from 415 individuals residing in Florida were cross-sectionally analyzed: 153 control subjects, 46 new-onset type 1 diabetic patients, 110 established type 1 diabetic patients (samples >or=5 months from diagnosis), and 106 first-degree relatives of the diabetic patients.

resultsIn this study, 25-OH vitamin D levels (median, range, interquartile range [IQR]) were similar among control subjects (20.1, below detection [bd]-163.5, 13.0-37.4 ng/ml), new-onset type 1 diabetic patients (21.2, bd-48.6, 12.2-30.2 ng/ml), established type 1 diabetic patients (23.2, bd-263.8, 13.8-33.9 ng/ml), and first-degree relatives (22.2, bd-59.9, 12.7-33.1 ng/ml) (P = 0.87). Mean 25-OH vitamin D levels were less than the optimal World Health Organization level of 30 ng/ml in all study groups.

conclusionsReduced serum 25-OH vitamin D levels were not specifically associated with type 1 diabetes. The uniform suboptimal 225-OH vitamin D levels, despite residence in a zone with abundant sunshine, support additional dietary vitamin D fortification practices.

Indexed as

Sunlight25-Hydroxyvitamin D 2Diabetes Mellitus, Type 1EthnicityFamilyFemaleFloridaHumansMaleRacial GroupsVitamin D25-Hydroxyvitamin D 2Vitamin D

Identifiers

PMID19675194
PMCPMC2768192
OpenAlexW2125403861

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.