Table 3

Differences in food purchases and expenditures between the control and experimental group

Control

(n = 52)

Experiment

(n = 63)


Mean

SD

Mean

SD

Δ experimental - control

P

(t-test)


FRUIT AND VEGETABLES

Fruit and vegetable expenditures (€)

11.49

4.74

9.71

4.88

-1.78 (15.5%)

0.05

Purchased vegetables (in items)

6.2

2.6

7.0

3.7

0.8 (12.5%)

0.20

Purchased vegetables (in grams)

2,879

1,241

3,191

1,675

311.7 (10.8%)

0.26

Purchased fruit (items)

1.7

1.1

1.9

1.4

0.2 (9.3%)

0.50

Purchased fruit (in gram)

1,877

1,082

2,171

1,599

293.4 (15.6%)

0.25

Total purchased fruit & vegetables (items)

7.9

3.1

8.8

4.4

0.9 (11.8%)

0.19

Total purchased fruit & vegetables (gram)

4,757

1,846

5,362

2,747

605.0 (12.7%)

0.16


OTHER FOOD ITEMS

Expenditures in Virtual Supermarket (€)

60.98

27.33

58.86

24.15

-2.12 (-3.5%)

0.66

Total items purchased (n)

45.8

21.0

46.0

19.6

0.31 (.7%)

0.93

Total calories purchased (kcal)

36,343

20,379

35,367

17,543

-976 (2.7%)

0.78

Items in other food categories (n) a

37.8

19.0

37.2

17.4

-0.60 (1.6%)

0.86

Expenditures in other food categories (€)a

50.42

24.58

49.74

22.41

-0.68 (1.3%)

0.40

Expenditures on desserts (e.g., pudding, yoghurt, etc.) (€)

1.60

1.50

1.62

1.62

0.02 (1.3%)

0.96

Expenditures on soda (€)

1.79

1.84

1.69

1.71

-0.10 (5.6%)

0.77

Expenditures on crisps (€)

0.93

1.06

0.71

1.00

-0.22 (23.7%)

0.26

Expenditures on candy (excl. chocolate)(€)

0.75

1.34

0.55

0.94

-0.20 (26.7%)

0.34

Expenditures on chocolate (€)

0.49

0.96

0.37

0.91

0.12 (24.9%)

0.49


aTotal expenditures in food categories other than fruit and vegetables

Waterlander et al. International Journal of Behavioral Nutrition and Physical Activity 2012 9:11   doi:10.1186/1479-5868-9-11

Open Data