File(s) under permanent embargo
BMD in population-based adult women is associated with socioeconomic status
journal contribution
posted on 2009-05-01, 00:00 authored by Sharon Brennan-OlsenSharon Brennan-Olsen, Margaret Rogers, A Wluka, G Nicholson, Mark KotowiczMark Kotowicz, Jo Williams, Julie PascoJulie PascoWith few exceptions, an inverse relationship exists between social disadvantage and disease. However, there are conflicting data for the relationship between socioeconomic status (SES) and BMD. The aim of this study was to assess the association between SES and lifestyle exposures in relation to BMD. In a cross-sectional study conducted using 1494 randomly selected population-based adult women, we assessed the association between SES and lifestyle exposures in relation to BMD. BMD was measured at multiple anatomical sites by DXA. SES was determined by cross-referencing residential addresses with Australian Bureau of Statistics 1996 census data for the study region and categorized in quintiles. Lifestyle variables were collected by self-report. Regression models used to assess the relationship between SES and BMD were adjusted for age, height, weight, dietary calcium, smoking, alcohol consumption, physical activity, hormone therapy, and calcium/vitamin D supplements. Unadjusted BMD differed across SES quintiles (p < 0.05). At each skeletal site and SES index, a consistent peak in adjusted BMD was observed in the mid-quintiles. Differences in adjusted BMD were observed between SES quintiles 1 and 4 (3-7%) and between quintiles 5 and 4 (2-7%). At the spine, the maximum difference was observed (7.5%). In a subset of women, serum 25(OH)D explained a proportion of the association between SES and BMD (difference remained up to 4.2%). Observed differences in BMD across SES quintiles, consistent across both SES indices, suggest that low BMD may be evident for both the most disadvantaged and most advantaged.
History
Journal
Journal of bone and mineral researchVolume
24Issue
5Pagination
809 - 815Publisher
Wiley - BlackwellLocation
Durham, NCPublisher DOI
ISSN
0884-0431eISSN
1523-4681Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2009, American Society for Bone and Mineral ResearchUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC