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Sustainable Development Goals
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EPIDEMIOLOGY OF VITAMIN D (EPIVIDA): A STUDY OF VITAMIN D STATUS AMONG HEALTHY ADULTS IN BRAZIL
Fatores sociodemográficos
Estilo de vida
Epidemiologia
Adultos saudáveis
Paratormônio
Sociodemographic factors
Lifestyle
Epidemiology
Healthy adults
Parathyroid hormone
Author
Affilliation
Universidade Federal do Paraná. Departamento de Medicina. Divisão de Endocrinologia. Curitiba, PR, Brasil.
Universidade Federal de São Paulo. Escola Paulista de Medicina. Divisão de Endocrinologia. São Paulo, SP, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil / Fundação de Obras Beneficentes Irmã Dulce. Centro de Pesquisas Clínicas. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil / Fundação de Obras Beneficentes Irmã Dulce. Centro de Pesquisas Clínicas. Salvador, BA, Brasil.
Universidade Federal de São Paulo. Escola Paulista de Medicina. Divisão de Endocrinologia. São Paulo, SP, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil / Fundação de Obras Beneficentes Irmã Dulce. Centro de Pesquisas Clínicas. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Ministério da Saúde. Salvador, BA, Brasil / Fundação de Obras Beneficentes Irmã Dulce. Centro de Pesquisas Clínicas. Salvador, BA, Brasil.
Abstract
Abstract: Context: There are few studies of 25-hydroxyvitamin D (25(OH)D) concentrations in healthy adults in Brazil. Objective: This work aimed to estimate the prevalence of vitamin D status and its association with lifestyle, sociodemographic, and anthropometric data in 3 regions of Brazil. Methods: A cross-sectional study was conducted among blood donors of both sexes, living in the cities of Salvador, São Paulo, and Curitiba during summer. Blood samples were collected during the procedure. Serum 25(OH)D and parathyroid hormone (PTH) were measured in the same laboratory using chemiluminescence immunoassays. Lifestyle, sociodemographic, and anthropometric data were gathered by an interview with a standardized questionnaire. Vitamin D deficiency and insufficiency was defined as 25(OH)D levels below 20 ng/mL and below 30 ng/mL, respectively. Results: A total of 1004 healthy adults were evaluated with mean levels of 25(OH)D (28.7 ±9.27 ng/mL) and PTH (34.4±15.1 pg/mL). The standardized prevalence of vitamin D deficiency and insufficiency was in the study population 15.3% and 50.9%: in Salvador 12.1% and 47.6%, in São Paulo 20.5%, and 52.4% and in Curitiba 12.7% and 52.1%, (P=.0004). PTH levels were negatively correlated with 25(OH)D levels. Greater body mass index (BMI) and higher latitude were significant predictors of vitamin D deficiency, whereas skin color (White), longer duration of sun exposure, and current use of dietary supplement were protective. Conclusion: This study confirmed the high prevalence of vitamin D deficiency and insufficiency even in the idsummer in a healthy population of Brazil. Vitamin D levels are associated with sun exposure, latitude, BMI, skin color, and use of supplements.
Keywords in Portuguese
Deficiência de vitamina DFatores sociodemográficos
Estilo de vida
Epidemiologia
Adultos saudáveis
Paratormônio
Keywords
Vitamin D deficiencySociodemographic factors
Lifestyle
Epidemiology
Healthy adults
Parathyroid hormone
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