Working patterns and vitamin D status in mid-life: a cross-sectional study of the 1958 British birth cohort.
| Autor: | Ward M; MRC Centre for the Epidemiology of Child Health, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK., Berry DJ, Power C, Hyppönen E |
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| Jazyk: | angličtina |
| Zdroj: | Occupational and environmental medicine [Occup Environ Med] 2011 Dec; Vol. 68 (12), pp. 902-7. Date of Electronic Publication: 2011 Apr 20. |
| DOI: | 10.1136/oem.2010.063479 |
| Abstrakt: | Objectives: To assess the association between working patterns and vitamin D status in men and women and to determine the potential influence of related lifestyle and socioeconomic factors. Methods: The authors used data from the 1958 British birth cohort (aged 45 years) and 6154 participants, who were in full-time work, were included in current analyses. Vitamin D status was measured by circulating concentrations of 25-hydroxyvitamin D (25(OH)D). Information on working patterns and lifestyle factors was obtained using a structured questionnaire administered at 45 years. Results: Manual social class was strongly associated with vitamin D-related lifestyle factors, with those in manual classes not only spending more time outdoors, but also spending more time watching TV/using PC, consuming less supplements and oily fish. Associations between working patterns and vitamin D-related lifestyles were less clear: night work was not strongly associated with lifestyles in either gender, while working hours were associated with time spent outside, PC/TV leisure time and use of supplements in men but not in women. In men, working patterns were not associated with lower 25(OH)D concentrations. In women, 25(OH)D concentrations were 8% lower (95% CI 15% to 2%) in night workers compared with others, while women working less than 35 h/week had 5% higher concentrations of 25(OH)D (95% CI 1% to 8%) compared with those working 35-40 h/week after adjustment for season, social class and body mass index (BMI). Conclusions: Women working nights and longer hours may be vulnerable to deficits in vitamin D status and associated health hazards. |
| Databáze: | MEDLINE |
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