Skip to main content

Table 3 Regional variation in the prevalence of reflux symptoms and symptom-defined gastroesophageal reflux disease (GERD).

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

Population

Reflux symptoms at least monthly

n (%)

Reflux symptoms at least weekly

n (%)

Symptom-defined GERDa

n (%)

Shanghai (n = 3151)

338 (10.7)

143 (4.5)

84 (2.7)

Beijing (n = 3168)

287 (9.1)

120 (3.8)

69 (2.2)

Wuhan (n = 3283)

532 (16.2)

245 (7.5)

169 (5.1)

Xi'an (n = 3266)

609 (18.6)

218 (6.7)

121 (3.7)

Guangzhou (n = 3210)

271 (8.4)

103 (3.2)

53 (1.7)

Total (n = 16 078)

2037 (12.7)

829 (5.2)

496 (3.1)

  1. aDefined as mild symptoms of heartburn and/or regurgitation occurring on at least 2 days a week (Reflux Disease Questionnaire [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).