BMD in population-based adult women is associated with socioeconomic status

Brennan, Sharon L., Henry, Margaret J., Wluka, Anita E., Nicholson, Geoffrey C., Kotowicz, Mark A., Williams, Joanne W. and Pasco, Julie A. (2009) BMD in population-based adult women is associated with socioeconomic status. Journal of Bone And Mineral Research, 24 5: 809-815. doi:10.1359/JBMR.081243


Author Brennan, Sharon L.
Henry, Margaret J.
Wluka, Anita E.
Nicholson, Geoffrey C.
Kotowicz, Mark A.
Williams, Joanne W.
Pasco, Julie A.
Title BMD in population-based adult women is associated with socioeconomic status
Journal name Journal of Bone And Mineral Research   Check publisher's open access policy
ISSN 0884-0431
1523-4681
Publication date 2009-05
Sub-type Article (original research)
DOI 10.1359/JBMR.081243
Volume 24
Issue 5
Start page 809
End page 815
Total pages 7
Place of publication Malden, MA, United States
Publisher Wiley-Blackwell
Language eng
Abstract With 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.
Keyword Socioeconomic Status
Social disadvantage
BMD
Population-based adults
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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