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)
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)