Table 2 Correlation coefficient for validity of the Food frequency questionnaire

Cornflakes

0.58

Milk chocolate

0.61

Fruit

0.63

Pasta

0.66

Rice

0.66

Delicatessen

0.66

Potatoes

0.67

Sweets

0.67

Boiled vegetables

0.69

Fruit juices

0.70

Souvlaki

0.70

Breakfast

0.71

Pizza

0.72

Meat

0.72

Biscuits

0.73

Egg

0.74

Fresh vegetables

0.76

Legumes

0.76

Bread

0.77

Sandwiches

0.77

Fish food

0.78

Potato chips

0.79

Refreshments

0.79

Pies

0.82

Dairy

0.84

Milk

0.90