Group A mean value (sd) Group B mean value (sd) P value
Chest pain 0.3 (0.2) 2.6 (0.8) 0.0001
Heartburn 0.8 (0.5) 2.9 (0.5) 0.0001
Regurgitation 0.9 (0.4) 2.4 (0.8) 0.0001
Upper stomach pain/burning 0.4 (0.2) 1.9 (0.4) 0.0001
Sore throat or hoarseness 0.1 (0.1) 0.7 (0.2) 0.0001
Symptoms during night’s sleep 0.2 (0.1) 1.3 (0.3) 0.0001
Symptoms during eating/drinking 0.1 (0.1) 0.7 (0.4) 0.0001
Symptoms during job/daily activities 0.2 (0.1) 1.1 (0.4) 0.0001
Additional medications 0.1 (0.1) 0.9 (0.4) 0.0001
Mean value (sd) 0.34 (0.3) 1.72 (0.4) 0.0001
Table 2: Results of different symptom perception of GERD-related symptoms explored with GIS questionnaire between Group A and Group B.