PURPOSE: The aim of this study is to investigate in a population of adolescents living in Regione Campania, undergoing sun exposure at least 9 months per year the prevalence of severe deficiency (<20 ng/ml) or insufficiency (21-29 ng/ml) of 25-Hydroxyvitamin D (25(OH)D) levels and its relationship with individual body weight, use of smoking, and exercise performance. METHODS: From October 2012 to October 2013, 373 healthy subjects (153 girls, 223 boys 11-20 years) without chronic diseases were consecutively enrolled in a campaign to prevent metabolic, cardiovascular, and oncological diseases. 25(OH)D assay, BMI, and lifestyle habitudes (smoking and exercise indoor or outdoor) were assessed. RESULTS: In this population, median 25(OH) level was 25.0 ng/ml (95 %CI 23.8-25.2) without any difference between girls (25.0 (95 %CI 23.1-25.7)) and boys (24.3 (95 %CI 23.8-25.2)). Severe deficiency was found in 6 girls (0.02 %), while insufficiency was found in 296 patients (110 girls, 79.3 %). Normal levels were found in 71 patients (37 girls, 19 %). Vitamin D levels were significantly correlated with BMI (r = -0.429, p < 0.0001), smoking (r = -0.241; p < 0.0001), and exercise performance (r = 0.791; p < 0.0001). At the multistep regression analysis, Vitamin D levels were best predicted by exercise performance (t = 19.6, p < 0.0001), less smoking addiction (t = -4.97, p < 0.001), and lower BMI (t = -4.69, p < 0.0001). CONCLUSIONS: The current study demonstrates that Vitamin D levels are commonly unsatisfactory in adolescents. Lower levels were found in overweight or obese adolescent, smokers and with low or absence of physical activity outdoors.
PURPOSE: The aim of this study is to investigate in a population of adolescents living in Regione Campania, undergoing sun exposure at least 9 months per year the prevalence of severe deficiency (<20 ng/ml) or insufficiency (21-29 ng/ml) of 25-Hydroxyvitamin D (25(OH)D) levels and its relationship with individual body weight, use of smoking, and exercise performance. METHODS: From October 2012 to October 2013, 373 healthy subjects (153 girls, 223 boys 11-20 years) without chronic diseases were consecutively enrolled in a campaign to prevent metabolic, cardiovascular, and oncological diseases. 25(OH)D assay, BMI, and lifestyle habitudes (smoking and exercise indoor or outdoor) were assessed. RESULTS: In this population, median 25(OH) level was 25.0 ng/ml (95 %CI 23.8-25.2) without any difference between girls (25.0 (95 %CI 23.1-25.7)) and boys (24.3 (95 %CI 23.8-25.2)). Severe deficiency was found in 6 girls (0.02 %), while insufficiency was found in 296 patients (110 girls, 79.3 %). Normal levels were found in 71 patients (37 girls, 19 %). Vitamin D levels were significantly correlated with BMI (r = -0.429, p < 0.0001), smoking (r = -0.241; p < 0.0001), and exercise performance (r = 0.791; p < 0.0001). At the multistep regression analysis, Vitamin D levels were best predicted by exercise performance (t = 19.6, p < 0.0001), less smoking addiction (t = -4.97, p < 0.001), and lower BMI (t = -4.69, p < 0.0001). CONCLUSIONS: The current study demonstrates that Vitamin D levels are commonly unsatisfactory in adolescents. Lower levels were found in overweight or obese adolescent, smokers and with low or absence of physical activity outdoors.
Authors: Marcela González-Gross; Jara Valtueña; Christina Breidenassel; Luis A Moreno; Marika Ferrari; Matilde Kersting; Stefaan De Henauw; Frederic Gottrand; Elena Azzini; Kurt Widhalm; Anthony Kafatos; Yannis Manios; Peter Stehle Journal: Br J Nutr Date: 2011-08-17 Impact factor: 3.718
Authors: Graeme Jones; Terry Dwyer; Kristen L Hynes; Venkat Parameswaran; Timothy M Greenaway Journal: Osteoporos Int Date: 2004-09-22 Impact factor: 4.507
Authors: Tom R Hill; Alice A Cotter; Sarah Mitchell; Colin A Boreham; Werner Dubitzky; Liam Murray; J J Strain; Albert Flynn; Paula J Robson; Julie M W Wallace; Mairead Kiely; Kevin D Cashman Journal: Br J Nutr Date: 2008-01-15 Impact factor: 3.718
Authors: Giuseppe Saggese; Francesco Vierucci; Flavia Prodam; Fabio Cardinale; Irene Cetin; Elena Chiappini; Gian Luigi De' Angelis; Maddalena Massari; Emanuele Miraglia Del Giudice; Michele Miraglia Del Giudice; Diego Peroni; Luigi Terracciano; Rino Agostiniani; Domenico Careddu; Daniele Giovanni Ghiglioni; Gianni Bona; Giuseppe Di Mauro; Giovanni Corsello Journal: Ital J Pediatr Date: 2018-05-08 Impact factor: 2.638
Authors: Gerardo Sarno; Giuseppe Daniele; Giacomo Tirabassi; Alberto O Chavez; Opeolu O Ojo; Francesco Orio; Hana Kahleova; Giancarlo Balercia; William B Grant; Paride De Rosa; Annamaria Colao; Giovanna Muscogiuri Journal: Endocrine Date: 2015-05-22 Impact factor: 3.633
Authors: Andrea Di Nisio; Luca De Toni; Elvio D'Addato; Maria R Pizzo; Pasquale Sabatino; Carlo Foresta Journal: Endocrine Date: 2015-09-01 Impact factor: 3.633