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Table 1 Demographic and clinical characteristics at initial visit

From: The Reflux Disease Questionnaire: a measure for assessment of treatment response in clinical trials

  n = 439 %
Gender   
   Male 224 51
Age   
   < 50 188 43
   50–64 166 38
   > 65 85 19
Country   
   Norway 134 31
   Sweden 305 69
Endoscopic grading   
   Normal 199 45
   Grade A 135 31
   Grade B 105 24
Method of GERD diagnosis a   
   Endoscopy 240 55
   pH monitoring 270 62
   Symptom Association 95 22
Total proven diagnoses 354 81
  1. a Percentages do not add up to 100 due to multiple methods of diagnosis.