Type

Journal Article

Authors

Kevin D Cashman
Mairead E Kiely
Kirsten G Dowling
George L. J. Hull
Anne-Sophie Bourhis
Toine Hulshof
George Moschonis
Yannis Manios

Subjects

Physiotherapy & Sport

Topics
body mass index diet urbanization greece administration dosage european continental ancestry group children and adolescents dietary supplements humans adolescent vitamin d deficiency female 25 hydroxyvitamin d seasonality epidemiology blood male urbanisation degree surveys and questionnaires rural population sex children vitamin d seasons prevalence child urban population

Prevalence of vitamin D deficiency and insufficiency among schoolchildren in Greece: The role of sex, degree of urbanisation and seasonality (2017)

Abstract The current study was aiming to report the prevalence of suboptimal vitamin D status among schoolchildren in Greece and investigate the role of sex, urbanisation and seasonality on vitamin D status. A sample of 2386 schoolchildren (9–13 years old) from four distinct prefectures was examined. The prevalence of 25-hydroxyvitamin D (25(OH)D) concentration <30 and <50 nmol/l (vitamin D deficiency and insufficiency respectively) was 5·2 and 52·5 %, respectively. Girls had a higher prevalence of 25(OH)D<30 (7·2 v. 3·2 %) and 50 nmol/l (57·0 v. 48·0 %) than boys (P<0·001). The highest prevalence rates of 25(OH)D<30 and 50 nmol/l (9·1 and 73·1 %, respectively) were observed during spring (April to June), whereas the lowest (1·5 and 31·9 %, respectively) during autumn (October to December). The prevalence of 25(OH)D<50 nmol/l was higher in urban/semi-urban than rural regions, particularly during spring months (74·6 v. 47·2 %; P<0·001). Female sex, urban/semi-urban region of residence and spring months were found to increase the likelihood of vitamin D deficiency and insufficiency, with the highest OR observed for spring months (7·47; 95 % CI 3·23, 17·3 and 5·14; 95 % CI 3·84, 6·89 for 25(OH)D<30 and 50 nmol/l respectively). In conclusion, despite the southerly latitude, the prevalence of low vitamin D status among primary schoolchildren in Greece is comparable to or exceeds the prevalence reported among children and adolescents on a European level. Sub-populations at highest risk are girls in urban/semi-urban areas during spring months, thus indicating the need for effective initiatives to support adequate vitamin D status in these population groups.
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Full list of authors on original publication

Kevin D Cashman, Mairead E Kiely, Kirsten G Dowling, George L. J. Hull, Anne-Sophie Bourhis, Toine Hulshof, George Moschonis, Yannis Manios

Experts in our system

1
Kevin D Cashman
University College Cork
Total Publications: 102
 
2
Mairead E Kiely
University College Cork
Total Publications: 116
 
3
Kirsten G Dowling
University College Cork
Total Publications: 20
 
4
George Hull
University College Cork
Total Publications: 7
 
5
George Moschonis
University College Dublin
Total Publications: 31
 
6
Yannis Manios
University College Dublin
Total Publications: 38