Table 4

Correlations between four-week receipt total costs, with one-, two-, and three- week receipts among 90 households

Total Four-Week Correlation With:

Food Category

One Week

Two Weeks

Three Weeks

Fruits And Vegetables

Fruit

.75

.89

.95

Vegetables (not potatoes)

Not fried

.76

.89

.96

Fried

.22

.40

.61

Potatoes

Not fried

.56

.80

.93

Fried

.72

.84

.94

Snacks And Sweets

Snacks

.60

.86

.94

Sweets

.80

.85

.94

Entrées and Sides

Prepackaged Entrée

< 500 kcal

.62

.80

.96

> 500 kcal

.23

.78

.94

Eating-out entrée

.78

.91

.96

Side orders

.86

.91

.97

Beverages

Non-caloric beverages

.70

.88

.97

Sugar-sweetened beverages

.74

.88

.92

Fruit/Vegetable juice

.74

.81

.92

Alcoholic beverages

.74

.84

.92

Specialty drinks

.90

.95

.97

TOTAL

Mean

.67

.83

.92

Median

.74

.85

.94

French et al. International Journal of Behavioral Nutrition and Physical Activity 2009 6:37   doi:10.1186/1479-5868-6-37