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Table 1 Data extraction from included studies

From: A systematic scoping review of the habitual dietary costs in low socioeconomic groups compared to high socioeconomic groups in Australia

Reference Population studied
Location & Date
Tool used to measure dietary costs SEG categorisation tool used Estimated mean weekly dietary costs of household reported ($) Proportion of household income spent on dietary intake (%)
Lowest SEG (definition) Highest SEG (definition) Lowest SEG (definition) Highest SEG (definition)
Inglis et al. [32] Adult married women with 2 dependent children (n = 74)
Melbourne, Australia, 2009
Typically purchased amounts of food & drink for a week selected from a list of 525 priced items Household incomea $ 198.87 (Income <$1500/week) $ 235.95 (Income >$1500/week) n/a n/a
ABARES study [33] Households (n = 10,046)
Australia-wide, 2015–16
Food & drink expenditure from 2 weeks of diary entries [36]
Not included: food and drinks not further described, eggs and egg products, edible oils and fats or alcoholic beverages.
Gross household income $ 114.15 (Lowest quintile) $ 391.23 (Highest quintile) n/a n/a
Household after tax income n/a n/a 24.8% (Lowest quintile) 10.5% (Highest quintile)
Household net worth $ 162.38 (Lowest quintile) $ 324.19 (Highest quintile) 15.0% (Lowest quintile) 12.4% (Highest quintile)
Main source of household income $ 131.75 (Main income source is government pension or allowance) $ 270.18 (Main income source is private income) 19.0% (Main income source is government pension or allowance) 13.0% (Main income source is private income)
ABS HES study [34] Households (n = 10,046)
Australia-wide
2015–16
Total food & drink expenditure from 2 weeks of diary entries [36] Equivalentb household disposable income $ 156.66 (Lowest quintile) $ 398.02 (Highest quintile) n/a n/a
Household net worth $ 182.05 (Lowest quintile) $ 373.19 (Highest quintile) n/a n/a
Main source of household income $ 143.29 (Main income source is government pension or allowance) $ 309.02 (Main income source is private income) n/a n/a
HILDA Study [35] Approx. 9800 households
Australia-wide
2001–2012
Total food & drink expenditure from self-filled questionnaire including: weekly groceries, alcohol & meals eaten out Equivalentb household disposable income $ 187.56c (Lowest quintile) $ 283.28c (Highest quintile) 26.6%d (Lowest quintile) 9.2%d (Highest quintile)
  1. aUnknown if gross or disposable income
  2. bHousehold disposable income was adjusted to account for different household sizes and age of household members (ABS) [37]
  3. cReported data from 2012 [35]
  4. dResult aggregated from data collected 2001–2012 [38]