Document Detail


Other than Daytime Working Is Associated with Lower Bone Mineral Density: The Korea National Health and Nutrition Examination Survey 2009.
MedLine Citation:
PMID:  23963634     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Occupation affects bone mineral density (BMD); however, only few studies have been published. This study evaluated the effect of working time during a day on BMD. The cross-sectional study involved 18- to 50-year-old people who reported their working time and were measured for BMD using dual-energy X-ray absorptiometry in the Fourth Korea National Health and Nutrition Examination Survey 2009. The time period of work was divided into "daytime" and "other than daytime." The other-than-daytime group included evening time, nighttime, regular shift time, and irregular shift time. Among 3,005 subjects, 2,378 were daytime workers and 627 were other-than-daytime workers. The mean BMD of the total femur and lumbar spine were significantly lower in other-than-daytime workers compared to daytime workers (femur 0.948 vs. 0.966 g/cm(2), respectively, p = 0.001; lumbar spine 0.976 vs. 0.988 g/cm(2), respectively, p = 0.023). The other-than-daytime group had lower levels of serum 25-hydroxyvitamin D than the daytime group (16.3 vs. 17.6 ng/mL, p < 0.001). The proportion of osteopenia (T score < -1.0) was higher in the other-than-daytime than the daytime group (34.3 vs. 29.1 %, p = 0.014). After adjustment for age, sex, socioeconomic status, lifestyle factors, daily intake of calcium, and vitamin D level, the relative risks of osteopenia of regular-shift and irregular-shift workers were significantly higher (1.65, 95 % CI 1.05-2.60; 1.78, 95 % CI 1.09-2.89) than those of daytime workers. These data suggest that other-than-daytime working, especially regular and irregular shift working, is associated with decreased BMD and increased risk for osteopenia in Korean adults.
Authors:
Bu Kyung Kim; Yong Jun Choi; Yoon-Sok Chung
Related Documents :
16053964 - Relationship of serum digoxin concentration to mortality and morbidity in women in the ...
16234424 - Ethnic differences in cause specific mortality among hospitalised patients with diabete...
931474 - Sudden death in the late hospital phase of acute myocardial infarction.
10830764 - Epidemiology of fetal death in latin america.
15727244 - Implications of the age range in a population-based brca1 testing program with eligibil...
24901864 - Sexual function in women with multiple sclerosis.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-8-21
Journal Detail:
Title:  Calcified tissue international     Volume:  -     ISSN:  1432-0827     ISO Abbreviation:  Calcif. Tissue Int.     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-8-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7905481     Medline TA:  Calcif Tissue Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Endocrinology and Metabolism, Ajou University School of Medicine, San 5 Wonchon-dong, Yeongtong-gu, Suwon, 443-721, South Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Once-Weekly Injection of Low-Dose Teriparatide (28.2 ?g) Reduced the Risk of Vertebral Fracture in P...
Next Document:  Efficacy of reversal of aortic calcification by chelating agents.