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Table 2 Symptom questionnaires

From: The clearance effect of bovine anti-Helicobacter pylori antibody-containing milk in O blood group Helicobacter pylori-infected patients: a randomized double-blind clinical trial

Symptom + ++ +++
Flatulence     
Abnormal taste     
Diarrhea     
Vomiting     
Epigastric pain     
Pirosis     
Heartburn     
Regurgitation     
Postprandial fullness     
Nausea     
Other (discriminate)     
Values 0 1 2 3
  1. +++ Symptom interferes with normal activity >50% of evaluated time, ++ symptom interferes with normal activity <50% of evaluated time, + symptom does not interfere with normal activity, – without symptoms.