SwePub
Sök i LIBRIS databas

  Extended search

id:"swepub:oai:gup.ub.gu.se/220631"
 

Search: id:"swepub:oai:gup.ub.gu.se/220631" > Seasonal variations...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
  • Klingberg, EvaGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research (author)

Seasonal variations in serum 25-hydroxy vitamin D levels in a Swedish cohort

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • 2015-02-14
  • Springer Science and Business Media LLC,2015

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/220631
  • https://gup.ub.gu.se/publication/220631URI
  • https://doi.org/10.1007/s12020-015-0548-3DOI

Supplementary language notes

  • Language:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • To study seasonal inter-individual and intra-individual variations in serum 25-hydroxy vitamin D (25(OH)D) and to explore parameters associated with 25(OH)D in a healthy Swedish adult population. 540 blood donors (60 % men; mean age 41 +/- A 13 years) and 75 thrombocyte donors (92 % men, aged 46 +/- A 11 years) were included. Serum was collected during 12 months and analyzed for 25(OH)D and parathyroid hormone (S-iPTH). The blood donors answered questionnaires concerning vitamin D supplements, smoking, physical activity, sunbed use and sun holidays. Repeated serum samples were collected from the thrombocyte donors to study the intra-individual variations in S-25(OH)D. S-25(OH)D varied greatly over the year correlating with the intensity of the UV-B irradiation (r (S) = 0.326; p < 0.001). During January-March, a S-25(OH)D level below the thresholds of 50 and 75 nmol/L was observed in 58 and 88 %, respectively, and during July-September in 11 and 50 % (p < 0.001). S-25(OH)D was negatively correlated with body mass index and S-iPTH, but was significantly higher in holiday makers in sunny destinations, sunbed users, non-smokers, and in the physically active. The intra-individual analyses showed a mean increase in S-25(OH)D by 8 nmol/L/month between April and August. Approximately 75 % had serum 25(OH)D values < 75 nmol/L during 75 % of the year and 50 % had serum 25(OH)D < 50 nmol/L during 50 % of the year. Serum 25(OH)D was strongly associated with parameters related to sun exposure, but only weakly with intake of vitamin D supplements.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Oleröd, GöranGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för klinisk kemi och transfusionsmedicin,Institute of Biomedicine, Department of Clinical Chemistry and Transfusion Medicine (author)
  • Konar, JanGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för klinisk kemi och transfusionsmedicin,Institute of Biomedicine, Department of Clinical Chemistry and Transfusion Medicine (author)
  • Petzold, Max,1973Gothenburg University,Göteborgs universitet,Akademistatistik,Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa, enheten för arbets-och miljömedicin,Centre for Applied Biostatistics,Institute of Medicine, Department of Public Health and Community Medicine, Section of Occupational and environmental medicine(Swepub:gu)xpemax (author)
  • Hammarsten, OlaGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för klinisk kemi och transfusionsmedicin,Institute of Biomedicine, Department of Clinical Chemistry and Transfusion Medicine(Swepub:gu)xhamol (author)
  • Göteborgs universitetInstitutionen för medicin, avdelningen för reumatologi och inflammationsforskning (creator_code:org_t)

Related titles

  • In:Endocrine: Springer Science and Business Media LLC49:3, s. 800-8081355-008X1559-0100

Internet link

Find in a library

  • Endocrine (Search for host publication in LIBRIS)

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Find more in SwePub

By the author/editor
Klingberg, Eva
Oleröd, Göran
Konar, Jan
Petzold, Max, 19 ...
Hammarsten, Ola
About the subject
MEDICAL AND HEALTH SCIENCES
MEDICAL AND HEAL ...
and Clinical Medicin ...
and Endocrinology an ...
Articles in the publication
Endocrine
By the university
University of Gothenburg

Search outside SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view