Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry

TLDR

The Japanese Gastric Cancer Association launched a nationwide registry in 2008, collecting 53 data items—including surgical procedures, pathology, and survival outcomes—from 13,626 patients treated in 2002 across 208 hospitals. Data were entered into the JGCA database using an electronic system based on the 13th edition JGCA and 5th edition UICC TNM classifications, and 13,002 laparotomy patients were analyzed with an 83.3 % five‑year follow‑up rate. Five‑year survival ranged from 92.3 % in stage IA to 15.3 % in stage IV, the direct death rate was 0.48 %, 7.8 % of patients were over 80 years old with a 51.6 % five‑year survival, and outcomes improved in advanced stages and among the elderly compared with archival data. Further efforts to improve the follow‑up rate are needed.

Abstract

The Japanese Gastric Cancer Association (JGCA) started a new nationwide gastric cancer registration in 2008.From 208 participating hospitals, 53 items including surgical procedures, pathological diagnosis, and survival outcomes of 13,626 patients with primary gastric cancer treated in 2002 were collected retrospectively. Data were entered into the JGCA database according to the JGCA classification (13th edition) and UICC TNM classification (5th edition) using an electronic data collecting system. Finally, data of 13,002 patients who underwent laparotomy were analyzed.The 5-year follow-up rate was 83.3 %. The direct death rate was 0.48 %. UICC 5-year survival rates (5YEARSs)/JGCA 5YEARSs were 92.2 %/92.3 % for stage IA, 85.3 %/84.7 % for stage IB, 72.1 %/70.0 % for stage II, 52.8 %/46.8 % for stage IIIA, 31.0 %/28.8 % for stage IIIB, and 14.9 %/15.3 % for stage IV, respectively. The proportion of patients more than 80 years old was 7.8 %, and their 5YEARS was 51.6 %. Postoperative outcome of the patients with primary gastric carcinoma in Japan have apparently improved in advanced cases and among the aged population when compared with the archival data. Further efforts to improve the follow-up rate are needed.Postoperative outcome of the patients with primary gastric carcinoma in Japan have apparently improved in advanced cases and among the aged population when compared with the archival data. Further efforts to improve the follow-up rate are needed.