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Spatial variation of salt intake in Britain and association with socioeconomic status
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Ji, Chen, Kandala, Ngianga-Bakwin and Cappuccio, Francesco (2013) Spatial variation of salt intake in Britain and association with socioeconomic status. BMJ Open, Vol.3 (No.1). e002246. doi:10.1136/bmjopen-2012-002246
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Official URL: http://dx.doi.org/10.1136/bmjopen-2012-002246
Abstract
Objectives: To evaluate spatial effects of variation and social determinants of salt intake in Britain.
Design: Cross-sectional survey.
Setting: Great Britain.
Participants: 2105 white male and female participants, aged 19–64 years, from the British National Diet and Nutrition Survey 2000–2001.
Primary outcomes: Participants’ sodium intake measured both with a 7-day dietary record and a 24-h urine collection. By accounting for important linear and non-linear risk factors and spatial effects, the geographical difference and spatial patterns of both dietary sodium intake and 24-h urinary sodium were investigated using Bayesian geo-additive models via Markov Chain Monte Carlo simulations.
Results: A significant north–south pattern of sodium intake was found from posterior probability maps after controlling for important sociodemographic factors. Participants living in Scotland had a significantly higher dietary sodium intake and 24-h urinary sodium levels. Significantly higher sodium intake was also found in people with the lowest educational attainment (dietary sodium: coeff. 0.157 (90% credible intervals 0.003, 0.319), urinary sodium: 0.149 (0.024, 0.281)) and in manual occupations (urinary sodium: 0.083 (0.004, 0.160)). These coefficients indicate approximately a 5%, 9% and 4% difference in average sodium intake between socioeconomic groups.
Conclusions: People living in Scotland had higher salt intake than those in England and Wales. Measures of low socioeconomic position were associated with higher levels of sodium intake, after allowing for geographic location.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | R Medicine > RA Public aspects of medicine | ||||
| Divisions: | Faculty of Medicine > Warwick Medical School > Health Sciences > Population, Evidence & Technologies (PET) > Warwick Evidence Faculty of Medicine > Warwick Medical School > Health Sciences > Mental Health and Wellbeing Faculty of Medicine > Warwick Medical School |
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| Library of Congress Subject Headings (LCSH): | Diet -- Great Britain | ||||
| Journal or Publication Title: | BMJ Open | ||||
| Publisher: | BMJ | ||||
| ISSN: | 2044-6055 | ||||
| Official Date: | 2013 | ||||
| Dates: |
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| Volume: | Vol.3 | ||||
| Number: | No.1 | ||||
| Page Range: | e002246 | ||||
| DOI: | 10.1136/bmjopen-2012-002246 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | BUPA Foundation | ||||
| Grant number: | MR-12-002 (BUPA) | ||||
| Related URLs: |
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