“…In the multivariable model on the pain dimension, older age (> 60 years) was associated with a higher risk of death at 1 year. Previous studies have identified age, pathological T stage, clinical lymph node involvement and treatment modality (surgery versus definitive chemoradiotherapy) as predictive factors of death in esophageal cancer [30][31]. The study by Tamagawa et al showed that the development of postoperative pneumonia was a risk factor for decreased 5-year OS in patients who underwent curative surgery for esophageal cancer [32].…”