Table 1 Data extraction from included studies

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 income^a

$ 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]

Equivalent^b 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

Equivalent^b household disposable income

$ 187.56^c (Lowest quintile)

$ 283.28^c (Highest quintile)

26.6%^d (Lowest quintile)

9.2%^d (Highest quintile)