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Preoperative quality of life, as measured by the Gastrointestinal Quality of Life Index in patients with gastroesophageal reflux disease alone (median GIQLI: 105) and patients with gastroesophageal reflux disease and associated somatoform tendencies (SSI ≥ 17) (median GIQLI: 77). This difference is significant (P < 0.001). SSI: Somatoform Symptom Index; GIQLI: Gastrointestinal Quality of Life Index; GERD: Gastroesophageal reflux disease.
