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Table 4 Self-reported history of GERD and treatment in participants with and without symptom-defined GERD.

From: A population-based survey of the epidemiology of symptom-defined gastroesophageal reflux disease: the Systematic Investigation of Gastrointestinal Diseases in China

Medical history of GERD With symptom-defined GERDa
(n = 496)
n (%)
Without symptom-defined GERDa
(n = 15 582)
n (%)
None 423 (85.3) 15 328 (98.4)
Previously diagnosed 73 (14.7) 253 (1.6)
Treatedb 57 (11.5) 191 (1.2)
Not treated 16 (3.2) 60 (0.4)
  1. GERD, gastroesophageal reflux disease; RDQ, Reflux Disease Questionnaire.
  2. aDefined as mild symptoms of heartburn and/or regurgitation occurring on at least 2 days a week (RDQ item frequency score ≥3 for a severity score of ≥2), or moderate-to-severe symptoms of heartburn and/or regurgitation occurring on at least 1 day a week (RDQ item frequency score ≥2 for a severity score ≥3).
  3. bDrug treatment (excluding traditional Chinese medicine).
  4. NOTE: numbers may not add up exactly where individual participants have refused to answer specific questions on the general information questionnaire.
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