grimes-issocioeconomicstatus-2013.pdf (244.52 kB)
Is socioeconomic status associated with dietary sodium intake in Australian children? A cross-sectional study
journal contribution
posted on 2013-02-08, 00:00 authored by Carley GrimesCarley Grimes, Karen CampbellKaren Campbell, Lynn RiddellLynn Riddell, Caryl NowsonCaryl NowsonObjective To assess the association between socioeconomic status (SES) and dietary sodium intake, and to identify if the major dietary sources of sodium differ by socioeconomic group in a nationally representative sample of Australian children.
Design Cross-sectional survey.
Setting 2007 Australian National Children's Nutrition and Physical Activity Survey.
Participants A total of 4487 children aged 2–16 years completed all components of the survey.
Primary and secondary outcome measures Sodium intake was determined via one 24 h dietary recall. The population proportion formula was used to identify the major sources of dietary salt. SES was defined by the level of education attained by the primary carer. In addition, parental income was used as a secondary indicator of SES.
Results Dietary sodium intake of children of low SES background was 2576 (SEM 42) mg/day (salt equivalent 6.6 (0.1) g/day), which was greater than that of children of high SES background 2370 (35) mg/day (salt 6.1 (0.1) g/day; p<0.001). After adjustment for age, gender, energy intake and body mass index, low SES children consumed 195 mg/day (salt 0.5 g/day) more sodium than high SES children (p<0.001). Low SES children had a greater intake of sodium from processed meat, gravies/sauces, pastries, breakfast cereals, potatoes and potato snacks (all p<0.05).
Conclusions Australian children from a low SES background have on average a 9% greater intake of sodium from food sources compared with those from a high SES background. Understanding the socioeconomic patterning of salt intake during childhood should be considered in interventions to reduce cardiovascular disease.
Design Cross-sectional survey.
Setting 2007 Australian National Children's Nutrition and Physical Activity Survey.
Participants A total of 4487 children aged 2–16 years completed all components of the survey.
Primary and secondary outcome measures Sodium intake was determined via one 24 h dietary recall. The population proportion formula was used to identify the major sources of dietary salt. SES was defined by the level of education attained by the primary carer. In addition, parental income was used as a secondary indicator of SES.
Results Dietary sodium intake of children of low SES background was 2576 (SEM 42) mg/day (salt equivalent 6.6 (0.1) g/day), which was greater than that of children of high SES background 2370 (35) mg/day (salt 6.1 (0.1) g/day; p<0.001). After adjustment for age, gender, energy intake and body mass index, low SES children consumed 195 mg/day (salt 0.5 g/day) more sodium than high SES children (p<0.001). Low SES children had a greater intake of sodium from processed meat, gravies/sauces, pastries, breakfast cereals, potatoes and potato snacks (all p<0.05).
Conclusions Australian children from a low SES background have on average a 9% greater intake of sodium from food sources compared with those from a high SES background. Understanding the socioeconomic patterning of salt intake during childhood should be considered in interventions to reduce cardiovascular disease.
History
Journal
BMJ OpenVolume
3Issue
2Pagination
1 - 7Publisher
BMJ GroupLocation
London, EnglandPublisher DOI
ISSN
2044-6055Language
engNotes
This article has been accepted for publication in BMJ Open following peer review and can also be viewed on the journal’s website at www.bmjopen.bmj.comPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2013, The AuthorsUsage metrics
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body masscaloric intakecardiovascular diseasechild healthdietary intakephysical activitysodium intakeScience & TechnologyLife Sciences & BiomedicineMedicine, General & InternalGeneral & Internal MedicineBLOOD-PRESSURECARDIOVASCULAR-DISEASESALTADOLESCENTSMETAANALYSISCONSUMPTIONCHILDHOODADULTHOODTRACKINGPOSITION
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