Evidence map›Paper›PMID 36456716›Full record

ArticleActa diabetologica2023

Longitudinal changes in vitamin D concentrations and the association with type 2 diabetes mellitus: the Tromsø Study.

Giovanni Allaoui, Charlotta Rylander, Ole-Martin Fuskevåg, Maria Averina, Tom Wilsgaard, Magritt Brustad, Rolf Jorde, Vivian Berg

Open access · hybridAbstract read
In one paragraph

Article in Acta diabetologica, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 42% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. 25-Hydroxyvitamin DCommunications medicine · 2026
    Article
  3. Article
  4. Article
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

8 authors at 3 institutions in 1 country.

Giovanni AllaouiDepartment of Laboratory Medicine, Diagnostic Clinic, University Hospital of North - Norway, 9038, Tromsø, Norway.
Charlotta RylanderDepartment of Community Medicine, Faculty of Health Sciences, UIT-The Arctic University of Norway, 9037, Tromsø, Norway.
Ole-Martin FuskevågDepartment of Laboratory Medicine, Diagnostic Clinic, University Hospital of North - Norway, 9038, Tromsø, Norway.
Maria AverinaDepartment of Laboratory Medicine, Diagnostic Clinic, University Hospital of North - Norway, 9038, Tromsø, Norway.
Tom WilsgaardDepartment of Community Medicine, Faculty of Health Sciences, UIT-The Arctic University of Norway, 9037, Tromsø, Norway.
Magritt BrustadDepartment of Community Medicine, Faculty of Health Sciences, UIT-The Arctic University of Norway, 9037, Tromsø, Norway.
Rolf JordeDepartment of Clinical Medicine, Tromsø Endocrine Research Group, Uit-The Arctic University of Norway, 9037, Tromsø, Norway.
Vivian BergDepartment of Laboratory Medicine, Diagnostic Clinic, University Hospital of North - Norway, 9038, Tromsø, Norway. vivian.berg@uit.no.ORCID http://orcid.org/0000-0001-5620-9901
University Hospital of North Norway · NOUiT The Arctic University of Norway · NONorthern Norway Regional Health Authority · NO

Funding

Helse Nord RHF HNF1470-19
6 · The paper itself

Abstract

aimWe aimed to investigate the relationship between pre- and post-diagnostic 25-hydroxyvitamin D (25(OH)D) concentrations and type 2 diabetes (T2DM) over a period of 30 years in individuals who developed T2DM compared to healthy controls.

methodsThis case-control study included 254 participants with blood samples collected at five different time-points (T1-T5) between 1986 and 2016. Of the 254 participants, 116 were diagnosed with T2DM between T3 and T4, and were considered cases; the remaining 138 were controls. Linear mixed regression models were used to examine pre- and post-diagnostic changes in 25(OH)D concentrations, and logistic regression was used to examine associations between these concentrations and T2DM at each time-point.

results25(OH)D concentrations at different time-points and the longitudinal change in concentrations differed between cases and controls, and by sex. For women, each 5-nmol/l increase in 25(OH)D concentrations was inversely associated with T2DM at T3 (odds-ratio, OR, 0.79), whereas for men, this same increase was positively associated with T2DM at T1 (OR 1.12). Cases experienced a significant decrease in pre-diagnostic 25(OH)D concentrations (p value < 0.01 for women, p value = 0.02 for men) and a significant increase in post-diagnostic 25(OH)D concentrations (p value < 0.01 for women, p value = 0.01 for men). As such, each 1-unit increase in month-specific z-score change between T1 and T3 was significantly inversely associated with T2DM (OR 0.51 for women, OR 0.52 for men), and each such increase between T3 and T5 was significantly positively associated with T2DM in women (OR 2.48).

conclusions25(OH)D concentrations seem to be affected by disease progression and type 2 diabetes diagnosis.

Indexed as

Diabetes Mellitus, Type 2Vitamin D DeficiencyCalcifediolCase-Control StudiesFemaleHumansMaleVitamin DVitaminsCalcifediolVitamin DVitamins25 Hydroxyvitamin D 225 Hydroxyvitamin D 3Longitudinal surveyType 2 diabetes mellitus

Identifiers

PMID36456716
PMCPMC9852201
OpenAlexW4310601536

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.