Abstract
The present study aimed to investigate the prevalence and seasonal variation of hypovitaminosis D (defined as serum 25-hydroxyvitamin D level below 30 nmol/l) among healthy subjects and hospitalized patients living in central Italy. We studied 297 subjects, 131 in February 1997 and 166 in July 1997, subdivided into four groups: (a) young healthy blood donors; (b) healthy postmenopausal women; (c) inpatients with various medical diseases and (d) inpatients engaged in long-term rehabilitation programmes because of various neurological disorders. In all subjects and patients serum levels of 25-hydroxyvitamin D were measured by radioimmunoassay. We found a significant seasonal variation (P< 0·0001) of serum 25-hydroxyvitamin D levels, mean values being higher in summer in all groups, except in patients with a longer hospitalization time (group (d)). In each group, a significantly higher prevalence of hypovitaminosis D was found in winter compared with summer time (P< 0·001), being unexpectedly high in postmenopausal women (winter 32 % and summer 4·5 %); furthermore, in both seasons, inpatients were characterized by the highest incidences of hypovitaminosis, particularly those in group (d) (winter 82·3 % and summer 57·8 %). The results of the present study emphasize the importance of 25-hydroxyvitamin D measurement, and the need to increase vitamin D intake in Italy; foodstuff fortification and supplement use must be considered in order to prevent negative effects of vitamin D deficiency on skeletal integrity.
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Dates
Type | When |
---|---|
Created | 6 years, 3 months ago (May 10, 2019, 3:12 p.m.) |
Deposited | 4 years, 8 months ago (Dec. 12, 2020, 6:09 a.m.) |
Indexed | 1 month, 2 weeks ago (July 23, 2025, 8:50 a.m.) |
Issued | 26 years, 7 months ago (Feb. 1, 1999) |
Published | 26 years, 7 months ago (Feb. 1, 1999) |
Published Online | 18 years, 5 months ago (March 9, 2007) |
Published Print | 26 years, 7 months ago (Feb. 1, 1999) |
@article{Romagnoli_1999, title={Hypovitaminosis D in an Italian population of healthy subjects and hospitalized patients}, volume={81}, ISSN={1475-2662}, url={http://dx.doi.org/10.1017/s0007114599000264}, DOI={10.1017/s0007114599000264}, number={2}, journal={British Journal of Nutrition}, publisher={Cambridge University Press (CUP)}, author={Romagnoli, Elisabetta and Caravella, Patrizia and Scarnecchia, Liliana and Martinez, Paolo and Minisola, Salvatore}, year={1999}, month=feb, pages={133–137} }