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Table 4 Agreement for validity of the FFQ

From: Relative validity of a semiquantitative food frequency questionnaire designed for schoolchildren in western Greece

Food items/groups Value of kappa Strength of agreement
Potatoes 0.361 Poor
Fruit 0.381 Poor
Sweets 0.400 Poor
Sandwiches 0.403 Poor
Fresh vegetables 0.460 Fair
Meat 0.473 Fair
Cornflakes 0.477 Fair
Fruit juices 0.481 Fair
Breakfast 1 0.483 Fair
Bread 0.502 Fair
Milk chocolate 0.525 Fair
Egg 0.537 Fair
Souvlaki 0.540 Fair
Refreshments 0.549 Fair
Potato chips 0.569 Fair
Boiled vegetables 0.574 Fair
Pasta 0.583 Fair
Biscuits 0.588 Fair
Rice 0.592 Fair
Pizza 0.594 Good
Dairy 0.605 Good
Sausages 0.626 Good
Pies 0.657 Good
Fish food 0.715 Good
Legumes 0.725 Good
Cheese 0.731 Good
Milk 0.812 Very Good
  1. 1 Breakfast was assessed on a yes or no basis. Refreshments were measured using the can-base unit of commercial refreshments.