Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry.
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.
Department of Surgery, Niigata Cancer Center Hospital, 2-15-3 Kawagishi-cho, Chuo-ku, Niigata, 951-8566, Japan. nasimoto@niigata-cc.jp
Atsushi
A
Nashimoto
Kohei
K
Akazawa
Yoh
Y
Isobe
Isao
I
Miyashiro
Hitoshi
H
Katai
Yasuhiro
Y
Kodera
Shunichi
S
Tsujitani
Yasuyuki
Y
Seto
Hiroshi
H
Furukawa
Ichiro
I
Oda
Hiroyuki
H
Ono
Satoshi
S
Tanabe
Michio
M
Kaminishi
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007564:Japan / Q000453:epidemiology; D007813:Laparotomy / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012042:Registries; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000473:pathology* / Q000601:surgery; D015996:Survival Rate; D016896:Treatment Outcome