AIM: To assess vitamin D status during summer and winter in Irish girls and elderly women, and to estimate vitamin D intake in these two age-groups. METHODS: Ambulatory free-living, elderly Irish women (aged 70-76 years; n = 43) and girls (aged 11-13 years; n = 17) were recruited. Fasting serums were collected during August/ September 2002 and February/March 2003 and analysed for 25 (OH) D by HPLC. RESULTS: Mean daily intakes of vitamin D were 4.6 microg and 2.1 microg in elderly women and girls, respectively. Serum 25 (OH) D was significantly lower (P<0.001) during winter than summer in both age-groups. Eight (20%) and one (during late summer) and sixteen (37.2%) and eight (47%) (during late winter) of the elderly women and girls, respectively, had inadequate vitamin D status (serum 25 (OH) D <40 nmol/l). CONCLUSION: Inadequate vitamin D status during winter time is quite common in elderly women and adolescent girls in Ireland.
AIM: To assess vitamin D status during summer and winter in Irish girls and elderly women, and to estimate vitamin D intake in these two age-groups. METHODS: Ambulatory free-living, elderly Irish women (aged 70-76 years; n = 43) and girls (aged 11-13 years; n = 17) were recruited. Fasting serums were collected during August/ September 2002 and February/March 2003 and analysed for 25 (OH) D by HPLC. RESULTS: Mean daily intakes of vitamin D were 4.6 microg and 2.1 microg in elderly women and girls, respectively. Serum 25 (OH) D was significantly lower (P<0.001) during winter than summer in both age-groups. Eight (20%) and one (during late summer) and sixteen (37.2%) and eight (47%) (during late winter) of the elderly women and girls, respectively, had inadequate vitamin D status (serum 25 (OH) D <40 nmol/l). CONCLUSION: Inadequate vitamin D status during winter time is quite common in elderly women and adolescent girls in Ireland.
Authors: Marjo K M Lehtonen-Veromaa; Timo T Möttönen; Ilpo O Nuotio; Kerttu M A Irjala; Aila E Leino; Jorma S A Viikari Journal: Am J Clin Nutr Date: 2002-12 Impact factor: 7.045
Authors: H Glerup; K Mikkelsen; L Poulsen; E Hass; S Overbeck; J Thomsen; P Charles; E F Eriksen Journal: J Intern Med Date: 2000-02 Impact factor: 8.989