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

Abstract

Background: The Japanese Gastric Cancer Association (JGCA) started a new nationwide gastric cancer registration in 2008.

Methods: 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.

Results: 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.

Conclusions: 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.

Fig. 1

Geographic distribution of registered patients by prefecture

Fig. 2

Kaplan–Meier survival for all patients with primary gastric cancer. 5YEARS 5-year survival rate

Fig. 3

Kaplan–Meier survival for resected cases and unresected cases

Fig. 4

Kaplan–Meier survival of resected cases stratified by sex

Fig. 5

Kaplan–Meier survival of resected cases stratified by age

Fig. 6

Kaplan–Meier survival of resected cases stratified by tumor location. W whole stomach

Fig. 7

Kaplan–Meier survival of resected cases stratified by macroscopic type

Fig. 8

Kaplan–Meier survival of resected cases stratified by histological findings

Fig. 9

Kaplan–Meier survival of resected cases stratified by lymphatic invasion

Fig. 10

Kaplan–Meier survival of resected cases stratified by depth of tumor invasion

Fig. 11

Kaplan–Meier survival of resected cases stratified by pT classification

Fig. 12

Kaplan–Meier survival of resected cases stratified by lymph node metastasis

Fig. 13

Kaplan–Meier survival of resected cases stratified by peritoneal cytology

Fig. 14

Kaplan–Meier survival of resected cases stratified by peritoneal metastasis

Fig. 15

Kaplan–Meier survival of resected cases stratified by Japanese Gastric Cancer Association (JGCA) stage

Fig. 16

Kaplan–Meier survival of resected cases stratified by TNM stage

Fig. 17

Kaplan–Meier survival of resected cases stratified by curative potential of gastric resection

Fig. 18

Chronological change of gastric cancer patients older than 80 years. The nationwide registry was suspended for a decade from 1992