Vitamin D levels and associated factors: a population-based study in Switzerland.

TitleVitamin D levels and associated factors: a population-based study in Switzerland.
Publication TypeJournal Article
Year of Publication2012
AuthorsGuessous, I, Dudler, V, Glatz, N, Theler, JM, Zoller, O, Paccaud, F, Burnier, M, Bochud, M
Corporate AuthorsSwiss Salt Survey Group
JournalSwiss Med Wkly
Date Published2012
KeywordsAdolescent, Adult, Altitude, Body Mass Index, Calcium, Contraceptives, Oral, Dietary Supplements, Female, Health Surveys, Humans, Language, Logistic Models, Male, Middle Aged, Motor Activity, Multivariate Analysis, Prevalence, Seasons, Switzerland, Vitamin D, Vitamin D Deficiency, Wine, Young Adult

QUESTIONS UNDER STUDY: To update the prevalence of vitamin D insufficiency and to identify factors associated with vitamin D status in the Swiss adult population.

METHODS: Data from the 2010-2011 Swiss Study on Salt intake, a population-based study in the Swiss population, was used. Vitamin D concentration in serum was measured by liquid chromatography- tandem mass spectrometry. Major factors that influence vitamin D levels were taken into account. Survey statistical procedures were used to estimate means and prevalences of vitamin D levels and status. Monthly-specific tertiles of vitamin D and ordinal logistic regression were used to determine the associations of covariates of interest with vitamin D status.

RESULTS: The prevalences of vitamin D insufficiency (serum 25-hydroxyvitamin D: 20-29.9 ng/ml) and deficiency (

CONCLUSIONS: Low levels of vitamin D are common among Swiss adults, in particular during winter months and outside the Italian-speaking region.

Alternate URL

Alternate JournalSwiss Med Wkly
Citation Key / SERVAL ID3350
PubMed ID23188555


Institute of Social and Preventive Medicine
Route de la Corniche 10, 1010 Lausanne - Switzerland
+41 21 314 72 72 |

Go to top