dc.contributor |
Háskóli Íslands |
dc.contributor |
University of Iceland |
dc.contributor.author |
Gaksch, Martin |
dc.contributor.author |
Jorde, Rolf |
dc.contributor.author |
Grimnes, Guri |
dc.contributor.author |
Joakimsen, Ragnar |
dc.contributor.author |
Schirmer, Henrik |
dc.contributor.author |
Wilsgaard, Tom |
dc.contributor.author |
Mathiesen, Ellisiv B. |
dc.contributor.author |
Njølstad, Inger |
dc.contributor.author |
Løchen, Maja-Lisa |
dc.contributor.author |
März, Winfried |
dc.contributor.author |
Kleber, Marcus E. |
dc.contributor.author |
Tomaschitz, Andreas |
dc.contributor.author |
Grübler, Martin |
dc.contributor.author |
Eiríksdóttir, Guðný |
dc.contributor.author |
Guðmundsson, Elías Freyr |
dc.contributor.author |
Harris, Tamara B. |
dc.contributor.author |
Cotch, Mary F. |
dc.contributor.author |
Aspelund, Thor |
dc.contributor.author |
Gudnason, Vilmundur |
dc.contributor.author |
Rutters, Femke |
dc.contributor.author |
Beulens, Joline W. J. |
dc.contributor.author |
van ‘t Riet, Esther |
dc.contributor.author |
Nijpels, Giel |
dc.contributor.author |
Dekker, Jacqueline M. |
dc.contributor.author |
Grove-Laugesen, Diana |
dc.contributor.author |
Rejnmark, Lars |
dc.contributor.author |
Busch, Markus A. |
dc.contributor.author |
Mensink, Gert B. M. |
dc.contributor.author |
Scheidt-Nave, Christa |
dc.contributor.author |
Thamm, Michael |
dc.contributor.author |
Swart, Karin M. A. |
dc.contributor.author |
Brouwer, Ingeborg A. |
dc.contributor.author |
Lips, Paul |
dc.contributor.author |
van Schoor, Natasja M. |
dc.contributor.author |
Sempos, Christopher T. |
dc.contributor.author |
Durazo-Arvizu, Ramón A. |
dc.contributor.author |
Škrabáková, Zuzana |
dc.contributor.author |
Dowling, Kirsten G. |
dc.contributor.author |
Cashman, Kevin D. |
dc.contributor.author |
Kiely, Mairead |
dc.contributor.author |
Pilz, Stefan |
dc.date.accessioned |
2017-06-14T13:36:05Z |
dc.date.available |
2017-06-14T13:36:05Z |
dc.date.issued |
2017-02-16 |
dc.identifier.citation |
Gaksch M, Jorde R, Grimnes G, Joakimsen R, Schirmer H, Wilsgaard T, et al. (2017) Vitamin D and mortality: Individual participant data meta-analysis of standardized 25-hydroxyvitamin D in 26916 individuals from a European consortium. PLoS ONE 12(2): e0170791. https://doi.org/10.1371/journal.pone.0170791 |
dc.identifier.issn |
1932-6203 |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/303 |
dc.description.abstract |
Background
Vitamin D deficiency may be a risk factor for mortality but previous meta-analyses lacked standardization of laboratory methods for 25-hydroxyvitamin D (25[OH]D) concentrations and used aggregate data instead of individual participant data (IPD). We therefore performed an IPD meta-analysis on the association between standardized serum 25(OH)D and mortality.
Methods
In a European consortium of eight prospective studies, including seven general population cohorts, we used the Vitamin D Standardization Program (VDSP) protocols to standardize 25(OH)D data. Meta-analyses using a one step procedure on IPD were performed to study associations of 25(OH)D with all-cause mortality as the primary outcome, and with cardiovascular and cancer mortality as secondary outcomes. This meta-analysis is registered at ClinicalTrials.gov, number NCT02438488.
Findings
We analysed 26916 study participants (median age 61.6 years, 58% females) with a median 25(OH)D concentration of 53.8 nmol/L. During a median follow-up time of 10.5 years, 6802 persons died. Compared to participants with 25(OH)D concentrations of 75 to 99.99 nmol/L, the adjusted hazard ratios (with 95% confidence interval) for mortality in the 25(OH)D groups with 40 to 49.99, 30 to 39.99, and <30 nmol/L were 1.15 (1.00–1.29), 1.33 (1.16–1.51), and 1.67 (1.44–1.89), respectively. We observed similar results for cardiovascular mortality, but there was no significant linear association between 25(OH)D and cancer mortality. There was also no significantly increased mortality risk at high 25(OH)D levels up to 125 nmol/L.
Interpretation
In the first IPD meta-analysis using standardized measurements of 25(OH)D we observed an association between low 25(OH)D and increased risk of all-cause mortality. It is of public health interest to evaluate whether treatment of vitamin D deficiency prevents premature deaths. |
dc.description.sponsorship |
This project has received funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) under Grant Agreement 613977 for the ODIN Integrated Project [Food-based solutions for optimal vitamin D nutrition and health through the life cycle http://www.odin-vitd.eu/]. Funding for the individual studies contributing data to this effort can be found in Appendix (S1 File), section 11. |
dc.format.extent |
e0170791 |
dc.language.iso |
en |
dc.publisher |
Public Library of Science (PLoS) |
dc.relation |
info:eu-repo/grantAgreement/EC/FP7/613977 |
dc.relation.ispartofseries |
Plos One;12(2) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Vitamin D |
dc.subject |
Deficiency |
dc.subject |
Meta analysis |
dc.subject |
Cardiovascular diseases |
dc.subject |
Death rates |
dc.subject |
D vítamín |
dc.subject |
Rannsóknir |
dc.subject |
Blóðrásarsjúkdómar |
dc.subject |
Dánartíðni |
dc.title |
Vitamin D and mortality: Individual participant data meta-analysis of standardized 25-hydroxyvitamin D in 26916 individuals from a European consortium |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication. |
dc.description.version |
Peer Reviewed |
dc.identifier.journal |
Plos One |
dc.identifier.doi |
10.1371/journal.pone.0170791 |
dc.relation.url |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0170791 |
dc.contributor.department |
Læknadeild (HÍ) |
dc.contributor.department |
Faculty of Medicine (UI) |
dc.contributor.school |
Heilbrigðisvísindasvið (HÍ) |
dc.contributor.school |
School of Health Sciences (UI) |