title: Is socioeconomic status associated with dietary sodium intake in Australian children? A cross-sectional study.
abstract: OBJECTIVE
  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.
  
  
  METHODS
  Cross-sectional survey.
  
  
  METHODS
  2007 Australian National Children's Nutrition and Physical Activity Survey.
  
  
  METHODS
  A total of 4487 children aged 2-16 years completed all components of the survey.
  
  
  METHODS
  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.
authors: Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria,  Australia.
authors: Carley A
authors: CA
authors: Grimes
authors: Karen J
authors: KJ
authors: Campbell
authors: Lynn J
authors: LJ
authors: Riddell
authors: Caryl A
authors: CA
authors: Nowson
references: Med Hypotheses. 2004;63(1):138-48
references: 15193367
references: Circulation. 2008 Jun 24;117(25):3171-80
references: 18559702
references: Acta Paediatr. 2010 Jan;99(1):24-9
references: 19839954
references: Int J Epidemiol. 2009 Jun;38(3):791-813
references: 19351697
references: J Nutr. 2011 Jul;141(7):1340-7
references: 21613454
references: Matern Child Nutr. 2014 Apr;10(2):213-25
references: 22462517
references: Eur J Clin Nutr. 1999 May;53(5):388-94
references: 10369495
references: Eur J Clin Nutr. 2003 Jan;57(1):128-37
references: 12548307
references: J Am Diet Assoc. 2002 Mar;102(3 Suppl):S40-51
references: 11902388
references: Br J Nutr. 2010 Feb;103(4):585-601
references: 19814837
references: Prev Med. 2003 Jun;36(6):721-30
references: 12744916
references: Public Health Nutr. 2011 Apr;14(4):629-34
references: 20576201
references: Pediatr Obes. 2012 Aug;7(4):329-42
references: 22715088
references: Public Health Nutr. 2003 Jun;6(4):365-70
references: 12795824
references: BMJ. 2007 Jul 28;335(7612):194
references: 17591624
references: Circulation. 1993 Oct;88(4 Pt 1):1973-98
references: 8403348
references: Public Health Nutr. 2002 Oct;5(5):663-9
references: 12372160
references: J Am Diet Assoc. 1989 May;89(5):671-6
references: 2723291
references: Am J Public Health. 1991 Dec;81(12):1608-12
references: 1746658
references: Am J Clin Nutr. 2003 Dec;78(6):1120-7
references: 14668273
references: BMJ. 2000 May 6;320(7244):1240-3
references: 10797032
references: Heart. 2009 Dec;95(24):2014-22
references: 19822574
references: Public Health Nutr. 2011 Oct;14(10):1724-35
references: 21281541
references: Prev Med. 2003 Sep;37(3):198-208
references: 12914825
references: Br J Nutr. 1999 Jul;82(1):7-15
references: 10655951
references: Arch Intern Med. 2007 Jul 23;167(14):1460-8
references: 17646599
references: J Hum Hypertens. 2008 Jan;22(1):4-11
references: 17823599
references: Am J Epidemiol. 2009 Apr 1;169(7):829-36
references: 19179358
references: J Am Coll Nutr. 1991 Aug;10(4):383-93
references: 1910064
references: Public Health Nutr. 2011 Jun;14(6):1096-104
references: 21306668
references: Public Health Nutr. 2009 Oct;12(10):1807-15
references: 19161648
references: BMC Public Health. 2005 Jan 20;5:7
references: 15661071
references: J Nutr. 2001 Feb;131(2S-1):536S-551S
references: 11160584
references: Br J Nutr. 2011 Feb;105(3):468-77
references: 20875190
references: Hypertension. 2006 Nov;48(5):861-9
references: 17000923
references: Am J Clin Nutr. 2008 May;87(5):1107-17
references: 18469226