Changes in age, stage distribution, and survival of patients with esophageal adenocarcinoma over three decades in the United States

Abstract

Background: Our aim was to evaluate the changes in age, stage distribution, and overall survival (OS) of patients with esophageal adenocarcinoma (EAC) over time.

Methods: Patients from the Surveillance, Epidemiology, and End Results (SEER) database aged ≥ 20 with invasive EAC, diagnosed from 1973-2003 were reviewed. Survival follow-up ended in 2006.

Results: There were 11,620 patients; 6580 (57%) aged ≥ 65. The stage distribution was 22%, 35%, and 43% for localized, regional, and distant metastasis for patients aged <65, and 33%, 33%, and 34% for patients aged ≥ 65. The number of patients ≥ 65 years with localized stage increased over time. Three-year OS for localized, regional, and distant disease increased from 19%, 10%, and 1% in 1973-1976, to 34%, 13%, and 2% in 1987-1991, and to 45%, 25%, and 4% in 2002-2003 (P < 0.001). A sub-analysis of 5475 patients from 1988-2002 showed better survival for patients with esophagectomy for all stages. Three-year OS for 2074 patients with esophagectomy improved every 5 years from 1988-2002 (39%, 43% to 54%, P < 0.001). Stratified by stage, year and esophagectomy status, patients aged <65 had better survival compared to patients aged ≥ 65 (P < 0.001).

Conclusions: There has been a substantial improvement in overall survival among patients with invasive EAC over the last 3 decades. Patients receiving esophagectomy had longer survival. Survival with esophagectomy improved in each time period. Although younger EAC patients were diagnosed at more advanced stages over time, they had better survival.