From: Validation of a survey methodology for gastroesophageal reflux disease in China
RDQ item | Heartburn dimension | Regurgitation dimension | GERD dimension | Epigastric pain dimension |
---|---|---|---|---|
Burning behind breastbone – severity | 0.62 | 0.34 | 0.38 | 0.32 |
Burning behind breastbone – frequency | 0.62 | 0.34 | 0.38 | 0.32 |
Pain behind breastbone – severity | 0.93 | 0.32 | 0.56 | 0.59 |
Pain behind breastbone – frequency | 0.93 | 0.32 | 0.56 | 0.59 |
Acid taste – severity | 0.32 | 0.91 | 0.84 | 0.44 |
Acid taste – frequency | 0.32 | 0.91 | 0.84 | 0.43 |
Movement of materials – severity | 0.42 | 0.72 | 0.67 | 0.39 |
Movement of materials – frequency | 0.43 | 0.72 | 0.67 | 0.39 |
Upper stomach burning – severity | 0.54 | 0.41 | 0.44 | 0.68 |
Upper stomach burning – frequency | 0.54 | 0.41 | 0.44 | 0.68 |
Upper stomach pain – severity | 0.58 | 0.45 | 0.56 | 0.94 |
Upper stomach pain – frequency | 0.58 | 0.45 | 0.56 | 0.94 |