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Table 2 Sample Characteristics (n = 22,102), International Food Policy Study, 2018

From: Patterns and correlates of nutrition knowledge across five countries in the 2018 international food policy study

Characteristic

Australia

(n = 3997)

% (n)

Canada (n = 4170) % (n)

Mexico

(n = 4044) % (n)

United Kingdom

(n = 5363) % (n)

United States

(n = 4527) % (n)

Age Group

 18–29 years

21.2 (845)

19.2 (800)

29.8 (1204)

19.1 (1026)

20.7 (934)

 30–44 years

26.5 (1060)

24.7 (1029)

32.3 (1305)

24.4 (1307)

25.2 (1141)

 45–59 years

24.7 (988)

25.9 (1078)

28.5 (1155)

26.2 (1407)

25.7 (1165)

 60+ years

27.6 (1104)

30.2 (1263)

9.4 (380)

30.3 (1623)

28.4 (1287)

Sex at Birth

 Male

49.0 (1959)

49.6 (2069)

47.6 (1925)

48.4 (2609)

48.4 (2192)

 Female

51.0 (2038)

50.4 (2101)

52.4 (2119)

51.3 (2754)

51.6 (2336)

Ethnicity

 Majority

76.0 (3039)

79.6 (3320)

78.7 (3183)

89.1 (4776)

75.9 (3438)

 Minority

24.0 (958)

20.4 (850)

21.3 (861)

10.9 (587)

24.1 (1089)

Education Level

 Low

42.0 (1682)

41.3 (1723)

19.5 (789)

48.6 (2605)

58.4 (2645)

 Medium

32.6 (1302)

33.7 (1407)

13.2 (535)

23.1 (1240)

9.9 (445)

 High

25.4 (1013)

25.0 (1040)

67.3 (2720)

28.3 (1518)

31.7 (1437)

Income Adequacy

 Very difficult to make ends meet

8.8 (353)

8.5 (353)

12.1 (490)

6.9 (367)

9.6 (435)

 Difficult to make ends meet

19.2 (768)

19.7 (822)

31.8 (1286)

18.4 (985)

20.0 (905)

 Neither easy nor difficult to make ends meet

37.6 (1502)

36.8 (1534)

38.7 (1564)

36.4 (1955)

33.9 (1535)

 Easy to make ends meet

23.5 (939)

22.4 (935)

13.9 (564)

24.5 (1314)

21.8 (987)

 Very easy to make ends meet

10.9 (435)

12.6 (525)

3.5 (141)

13.8 (742)

14.7 (665)

Body Mass Index

  < 18.5

3.1 (123)

3.3 (136)

2.1 (85)

3.0 (162)

3.5 (157)

 18.5–24.9

35.9 (1437)

33.6 (1400)

39.8 (1608)

34.7 (1861)

30.8 (1395)

 25.0–29.9

26.4 (1054)

28.7 (1197)

29.9 (1207)

26.8 (1437)

27.8 (1259)

  ≥ 30.0

21.1 (842)

24.4 (1019)

15.5 (629)

16.8 (903)

27.3 (1235)

 Missing

13.5 (541)

10.0 (418)

12.7 (515)

18.7 (1000)

10.6 (481)

Food Shopping Role

 Primary shopper

71.7 (2864)

72.0 (3000)

74.9 (3029)

74.2 (3981)

73.3 (3319)

 Not primary shopper

7.1 (284)

6.0 (249)

5.1 (205)

4.7 (253)

6.6 (299)

 Shared equally with others

21.2 (849)

22.0 (921)

20.0 (810)

21.1 (1129)

20.1 (909)

Dietary Practices

 No specific dietary practices

87.0 (3477)

90.3 (3765)

88.1 (3564)

87.0 (4665)

88.6 (4012)

 One or more dietary practices (i.e., vegetarian, vegan, pescatarian, religious practices)

13.0 (520)

9.7 (405)

11.9 (480)

13.0 (698)

11.4 (515)

Dietary Efforts Scorea

2.8 (2.2)

2.6 (2.1)

2.6 (2.3)

3.1 (2.1)

3.0 (2.3)

Health Literacy

 High likelihood of limited literacy (score 0–1)

26.7 (1040)

19.4 (810)

30.5 (1234)

31.8 (1707)

25.4 (1150)

 Possibility of limited literacy (score 2–3)

24.7 (964)

23.2 (966)

31.2 (1261)

20.5 (1097)

20.2 (913)

 Adequate literacy (score 4–6)

48.6 (1897)

57.4 (2394)

38.3 (1549)

47.7 (2559)

54.4 (2464)

Self-reported Nutrition Knowledge

 Not at all knowledgeable

5.6 (223)

4.1 (169)

2.8 (114)

9.4 (502)

5.8 (263)

 A little knowledgeable

31.5 (1261)

30.1 (1256)

30.4 (1228)

39.4 (2111)

28.8 (1306)

 Somewhat knowledgeable

41.4 (1653)

44.4 (1850)

53.0 (2141)

35.7 (1914)

41.2 (1864)

 Very knowledgeable

17.4 (696)

18.2 (762)

12.2 (495)

12.6 (674)

18.7 (844)

 Extremely knowledgeable

4.1 (164)

3.2 (133)

1.6 (66)

3.0 (161)

5.5 (250)

  1. aMean and standard deviation reported for dietary efforts score