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Vitamin D status, sun exposure and lipid profile among adolescents living in São Paulo, Brazil
Author(s) -
Giudici Kelly Virecoulon,
Pádua Lopes Mariana Agostinho,
Marchioni Dirce Maria Lobo,
Fisberg Regina Mara,
Martini Lígia Araújo
Publication year - 2013
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.27.1_supplement.1060.4
Subject(s) - overweight , medicine , body mass index , vitamin d and neurology , lipid profile , sun exposure , demography , population , cholesterol , zoology , environmental health , biology , dermatology , sociology
To evaluate the association between vitamin D (VD) status, lipid profile and sun exposure among adolescents living in Brazil. A total of 140 subjects (55.3% male), mean age 16.1 years (SD = 1.5) were included. A blood sample was collected after a 12‐hour fasting to determine VD, total cholesterol (TC), HDL‐c, LDL‐c and VLDL‐c concentrations. Height and weight were measured. Sun exposure data were obtained through a standardized questionnaire. Student T and Pearson's Chi‐Square tests were performed. Mean body mass index (BMI) was 21.6 kg/m 2 (SD = 4.7), and 29.0% were overweight. Mean VD concentration was 28.8 ng/mL (SD = 11.6), and boys presented higher VD insufficiency than girls (70.3% vs 46.9%; p = 0.012). The adolescents classified in the highest tertile of VD presented lower BMI than those in the second tertile (20.4 kg/m 2 , SD = 3.3 vs 23.0 kg/m 2 , SD = 5.4; p = 0,041). The majority (85.6%) reported having the habit of getting exposed to the sun for more than 30 minutes, but 69.7% rarely or never apply sunscreen. The prevalence of low HDL‐c concentration was 17.1%, also higher among boys (25.6% vs 6.5%; p = 0.003). TC and LDL‐c concentrations were considered inadequate in 7.9% and 5.0% of the sample, respectively. Although the studied population lives in a sunny country and refers the habit of sunning, the prevalence of VD insufficiency was high, especially among boys, who also presented high HDL‐c inadequacy. FAPESP.