Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study
Vitamin D can be synthesized in the skin via sunlight exposure as well as ingested through diet. Vitamin D deficiency is currently a major global public health issue, with increasing prevalence in both low and high latitude locations. This cross-sectional analysis aimed to compare the intensity of i...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/12/12/3805 |
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| author | Marcela M. Mendes Kathryn H. Hart Susan A. Lanham-New Patrícia B. Botelho |
| author_facet | Marcela M. Mendes Kathryn H. Hart Susan A. Lanham-New Patrícia B. Botelho |
| author_sort | Marcela M. Mendes |
| collection | DOAJ |
| description | Vitamin D can be synthesized in the skin via sunlight exposure as well as ingested through diet. Vitamin D deficiency is currently a major global public health issue, with increasing prevalence in both low and high latitude locations. This cross-sectional analysis aimed to compare the intensity of individual Ultraviolet B radiation levels between women of the same ethnicity living in England and Brazil, respectively; and to investigate the association with circulating 25(OH)D concentrations. We analysed data from 135 Brazilian women (England, <i>n</i> = 56, 51° N; Brazil, <i>n</i> = 79, 16° S) recruited for the D-SOL study (Interaction between Vitamin <b>D</b> Supplementation and <b>S</b>unlight Exposure in Women Living in <b>O</b>pposite <b>L</b>atitudes). Serum 25(OH)D concentrations were analysed by high performance liquid chromatography tandem mass spectrometry (HPLC-MS), individual UVB radiation via UVB dosimeter badges and dietary intake via 4-day diet diaries. Anthropometric, skin phototype, sociodemographic and lifestyle patterns were also assessed. Mean serum 25(OH)D concentration of England residents was significantly lower than Brazil residents. Daily individual UVB radiation level showed a strong significant positive correlation with serum 25(OH)D concentrations. The required UVB radiation to achieve 75 nmol/L was 2.2 SED and 38.8% of the total variance in 25(OH)D concentrations was explained uniquely by daily individual UVB radiation, after controlling for the influence of age and body mass index. Thus, these results highlight the strong positive association between serum 25(OH)D concentrations and individual UVB radiation and the influence of different individual characteristics and behaviours. Collectively, these factors contribute to meaningful, country-specific, public health strategies and policies for the efficient prevention and treatment of vitamin D inadequacy. |
| first_indexed | 2024-03-10T14:08:33Z |
| format | Article |
| id | doaj.art-22ae093ec5f045daae8a08b15750654c |
| institution | Directory Open Access Journal |
| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-10T14:08:33Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-22ae093ec5f045daae8a08b15750654c2023-11-21T00:25:15ZengMDPI AGNutrients2072-66432020-12-011212380510.3390/nu12123805Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL StudyMarcela M. Mendes0Kathryn H. Hart1Susan A. Lanham-New2Patrícia B. Botelho3Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UKDepartment of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UKDepartment of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UKDepartment of Nutrition, Faculty of Health Sciences, University of Brasília, Brasília 70910-900, BrazilVitamin D can be synthesized in the skin via sunlight exposure as well as ingested through diet. Vitamin D deficiency is currently a major global public health issue, with increasing prevalence in both low and high latitude locations. This cross-sectional analysis aimed to compare the intensity of individual Ultraviolet B radiation levels between women of the same ethnicity living in England and Brazil, respectively; and to investigate the association with circulating 25(OH)D concentrations. We analysed data from 135 Brazilian women (England, <i>n</i> = 56, 51° N; Brazil, <i>n</i> = 79, 16° S) recruited for the D-SOL study (Interaction between Vitamin <b>D</b> Supplementation and <b>S</b>unlight Exposure in Women Living in <b>O</b>pposite <b>L</b>atitudes). Serum 25(OH)D concentrations were analysed by high performance liquid chromatography tandem mass spectrometry (HPLC-MS), individual UVB radiation via UVB dosimeter badges and dietary intake via 4-day diet diaries. Anthropometric, skin phototype, sociodemographic and lifestyle patterns were also assessed. Mean serum 25(OH)D concentration of England residents was significantly lower than Brazil residents. Daily individual UVB radiation level showed a strong significant positive correlation with serum 25(OH)D concentrations. The required UVB radiation to achieve 75 nmol/L was 2.2 SED and 38.8% of the total variance in 25(OH)D concentrations was explained uniquely by daily individual UVB radiation, after controlling for the influence of age and body mass index. Thus, these results highlight the strong positive association between serum 25(OH)D concentrations and individual UVB radiation and the influence of different individual characteristics and behaviours. Collectively, these factors contribute to meaningful, country-specific, public health strategies and policies for the efficient prevention and treatment of vitamin D inadequacy.https://www.mdpi.com/2072-6643/12/12/3805vitamin Dsunlight exposurelatitudevitamin D intake |
| spellingShingle | Marcela M. Mendes Kathryn H. Hart Susan A. Lanham-New Patrícia B. Botelho Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study Nutrients vitamin D sunlight exposure latitude vitamin D intake |
| title | Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study |
| title_full | Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study |
| title_fullStr | Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study |
| title_full_unstemmed | Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study |
| title_short | Exploring the Impact of Individual UVB Radiation Levels on Serum 25-Hydroxyvitamin D in Women Living in High Versus Low Latitudes: A Cross-Sectional Analysis from the D-SOL Study |
| title_sort | exploring the impact of individual uvb radiation levels on serum 25 hydroxyvitamin d in women living in high versus low latitudes a cross sectional analysis from the d sol study |
| topic | vitamin D sunlight exposure latitude vitamin D intake |
| url | https://www.mdpi.com/2072-6643/12/12/3805 |
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