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Table 1 Study group allocation and characteristics of participants (% (n))

From: Availability of healthier vs. less healthy food and food choice: an online experiment

Study group

Equal healthier/ less healthy item availability

High cognitive load

17.0% (257)

Low cognitive load

15.4% (233)

Increased healthier item availability

High cognitive load

17.4% (263)

Low cognitive load

16.1% (243)

Increased less healthy item availability

High cognitive load

16.8% (254)

Low cognitive load

17.2% (259)

Socioeconomic status

Occupational groupa

A&B

34.0% (513)

C1&C2

33.3% (503)

D&E

32.7% (493)

Highest educational qualification

1–4 GCSEs or equivalent

10.7% (162)

5+ GCSEs or equivalent

15.6% (236)

2+ A Levels or equivalent

9.3% (141)

Degree or equivalent, or higher

46.7% (704)

Prefer not to answer/ Still studying/ Foreign qualifications

17.6% (266)

Annual household income (GBP)

Up to £17,499

25.8% (389)

£17,500–£29,999

24.5% (370)

£30,000–£49,999

27.0% (408)

£50,000+

19.2% (290)

Prefer not to answer/ Don’t know

3.4% (52)

Index of Multiple Deprivation quintilesb

Quintile 1: Least deprived

18.6% (281)

Quintile 2

18.6% (281)

Quintile 3

19.2% (289)

Quintile 4

18.7% (282)

Quintile 5: Most deprived

18.6% (281)

Prefer not to answer/ Postcode not recognised

6.3% (95)

Cognitive load

Percentage recalling number correctly

Low load

97.8% (719/735)

High load

74.4% (576/774)

Food appeal

Mean enjoyment ratingsc

Healthier Mean (s.d.)

0.56 (1.06)

Less healthy Mean (s.d.)

0.99 (1.09)

Response inhibition

SUPPS-P

Mean (s.d.)

40.8 (9.5)

Hunger

Mean hunger rating

Mean (s.d.)

0.33 (1.37)

  1. aA&B: Higher and intermediate managerial, administrative and professional occupations; C1&C2: Supervisory, clerical and junior managerial, administrative and professional occupations; D&E: Semi-skilled and unskilled manual occupations
  2. bQuintiles defined within sample, with IMD scores of: Least deprived: 0.98 to 8.25; 2: 8.26 to 13.73, 3: 13.77 to 20.68; 4: 20.7 to 32.75, Most deprived: 32.87 to 77.29
  3. cA rating of 0 was labelled ‘Neither enjoyable nor unenjoyable’, and 1 ‘Quite enjoyable’