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Table 2 Test re-test results for medical information

From: Development of a questionnaire to assess dietary restrictions runners use to mitigate gastrointestinal symptoms

Variable % Observed Agreement Kappa 95% CI PABAK PI BI
Food Allergies
 Milk 97.44 .66 .03–1.00 .95 .92 .03
 Whey 97.44 .00 .00–1.00 .95 .97 .03
 Gluten 97.44 .00 .00–1.00 .95 .97 .03
 Casein 97.44 .00 .00–1.00 .95 .97 .03
 No allergies 94.87 .86 .66–1.00 .90 .54 .05
Food Intolerances
 Gluten free 97.44 .00 .00–1.00 .95 .97 .03
 Legumes 97.44 .79 .38–1.00 .95 .87 .03
 Grains 92.31 .54 .09–.98 .85 .82 .08
 Starchy vegetable 97.44 .00 .00–1.00 .95 .97 .03
 Cold cereal 94.87 .00 .00–1.00 .90 .95 .05
 Fish/seafood 97.44 .00 .00–1.00 .95 .97 .03
 Hot cereal 97.44 .00 .00–1.00 .95 .97 .03
 Nuts 97.44 .00 .00–1.00 .95 .97 .03
 Coffee/tea 97.44 .00 .00–1.00 .95 .97 .03
 Yogurt 97.44 .79 .38–1.00 .95 .87 .03
 Eggs 97.44 .66 .03–1.00 .95 .92 .03
 Energy drink 94.87 .48 −.12–1.00 .90 .90 .05
 Cheese 97.44 .79 .38–1.00 .95 .87 .03
 Milk 87.18 .47 .08–0.87 .74 .72 .03
 Sports drink 97.44 .66 .03–1.00 .95 .92 .03
 Lactose-free milk 97.44 .00 .00–1.00 .95 .97 .03
 Sports bar/gel 97.44 .00 .00–1.00 .95 .97 .03
 Vegetables 89.74 .46 .04–.88 .79 .79 .10
 No food intolerances 92.31 .84 .67–1.00 .85 .15 .03
  1. Kappa unadjusted kappa, 95% CI 95% confidence interval, PABAK prevalence-adjusted bias-adjusted kappa, PI prevalence index, BI bias index, IBD inflammatory bowel disease. Reliability for medical, allergy and food intolerances was determined using a kappa statistic or PABAK. Celiac disease, irritable bowel syndrome (IBS), heart burn/reflux, hiatus hernia, intestinal parasites, and no medical diagnosis had 100% agreement. IBD, who diagnosed your medical condition, who diagnosed your food allergy, allergy test, and blood allergy test all had substantial agreement. Allergies to tree nuts, sesame, soy, sulfites, egg whites, peanuts, fish/seafood, wheat, mustard, eggs, and monosodium glutamate (MSG) had 100% agreement. Intolerance to soy milk, meat, almond milk, poultry, coconut milk, juice, and fruit had 100% agreement