From: Validation of a survey methodology for gastroesophageal reflux disease in China
Symptom | Heartburn | Regurgitation | Epigastric pain |
---|---|---|---|
Heartburn | Â | Â | Â |
   Burning behind breastbone – severity | 0.84 | 0.22 | 0.31 |
   Burning behind breastbone – frequency | 0.84 | 0.11 | 0.37 |
   Pain behind breastbone – severity | 0.25 | 0.05 | 0.80 |
   Pain behind breastbone – frequency | 0.10 | 0.04 | 0.84 |
Regurgitation | Â | Â | Â |
   Acid taste – severity | -0.09 | 0.89 | 0.16 |
   Acid taste – frequency | -0.07 | 0.84 | 0.15 |
   Movement of materials – severity | 0.33 | 0.72 | 0.17 |
   Movement of materials – frequency | 0.36 | 0.72 | 0.17 |
Epigastric pain | Â | Â | Â |
   Upper stomach burning – severity | 0.31 | 0.12 | 0.59 |
   Upper stomach burning – frequency | 0.36 | 0.01 | 0.63 |
   Upper stomach pain – severity | -0.18 | 0.27 | 0.83 |
   Upper stomach pain – frequency | -0.15 | 0.14 | 0.88 |