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Table 1 Process evaluation of the skill-building intervention at post-intervention

From: A process evaluation of the Supermarket Healthy Eating for Life (SHELf) randomized controlled trial

Survey questions

Skill-building

n = 160a

% (n)

Combined

n = 160a

% (n)

P-value

Newsletters

 

 In the past 3 months, did you receive newsletters from us about healthy eating? (implementation)

  

0.493

  Yes

98.0 (146)

99.3 (151)

 

  No

1 (2)

0 (0)

 

  Don’t know

0.7 (1)

0.7 (1)

 

 If yes, how useful did you find these newsletters? (implementation)

  

0.457

  5 Extremely useful

14.9 (21)

17.2 (25)

 

  4

34.0 (48)

29.0 (42)

 

  3

30.5 (43)

35.2 (51)

 

  2

18.4 (26)

13.8 (20)

 

  1 Not at all useful

2.1 (3)

4.8 (7)

 

 How many of the 8 newsletters did you read? (implementation)

  

0.919

  All

51.8 (75)

51.7 (78)

 

  About 75 %

19.3 (28)

22.5 (34)

 

  About 50 %

16.6 (24)

13.3 (20)

 

  About 25 %

9.7 (14)

9.9 (15)

 

  None

2.8 (4)

2.7 (4)

 

 On average how long did it take you to read through a newsletter? (implementation) (mean ± SD)

11.9 ± 12.8 mins

11.8 ± 8.8 mins

0.899

Recipes

 

 Did you use any of the recipes provided? (implementation)

  

0.114

  Yes

45.6 (67)

53.6 (81)

 

  No

53.1 (78)

46.3 (70)

 

  Don’t know

1.4 (2)

0 (0)

 

 If yes, how many have you used? (implementation)

  

0.860

  All

1.5 (1)

2.4 (2)

 

  13–15

1.5 (1)

1.2 (1)

 

  10–12

0 (0)

1.2 (1)

 

  7–9

1.5 (1)

4.9 (4)

 

  4–6

30.8 (20)

24.4 (20)

 

  1–3

64.6 (42)

64.6 (53)

 

 How often have you used the recipes? (implementation)

  

0.815

  Every day

0

0

 

  Every 2–3 days

3.0 (2)

3.7 (3)

 

  About once a week

16.7 (11)

15.9 (13)

 

  About once every 2 weeks

34.9 (23)

28.1 (23)

 

  About once a month

19.7 (13)

28.1 (23)

 

  Less than once a month

25.8 (17)

23.2 (19)

 

 Did you find the additional materials useful? (e.g. the Food for Health brochures, Food Cents Eat Smart for 4 booklets, etc.) (implementation)

  

0.335

  Yes

65.1 (97)

72.8 (107)

 

  No

18.1 (27)

12.9 (19)

 

  Don’t know

16.8 (25)

14.3 (21)

 

 Did you share any of the newsletters, additional materials or recipes with friends or family over the past 3 months? (reach)

  

0.853

  Yes

30.4 (45)

33.1 (49)

 

  No

68.9 (102)

66.2 (98)

 

  Don’t know

0.7 (1)

0.7 (1)

 

 What do you think of the amount of materials (newsletters, recipes, and other materials) you received from us? (implementation)

  

0.969

  Too many materials

21.0 (31)

21.9 (32)

 

  About the right amount

76.4 (113)

75.3 (110)

 

  Did not receive enough

2.7 (4)

2.7 (4)

 
  1. RE-AIM constructs examined are listed in brackets after each question
  2. Fisher’s exact tests and χ 2 tests (for categorical data) and two-sided unpaired t-tests with unequal variances were conducted to assess differences in survey responses between treatment groups. Unadjusted multinomial logistic regression with robust standard errors was used to assess differences between groups where Fisher’s or χ 2 tests revealed overall differences
  3. aRepresents highest possible sample size for each question. The sample size for each question differs due to missing responses