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. 2022 Nov;25(6):1082-1093.
doi: 10.1007/s10120-022-01317-6. Epub 2022 Jul 5.

A retrospective 5-year survival analysis of surgically resected gastric cancer cases from the Japanese Gastric Cancer Association nationwide registry (2001-2013)

Yoshihiro Kakeji  1 , Takashi Ishikawa  2 , Satoshi Suzuki  3 , Kohei Akazawa  2 , Tomoyuki Irino  4 , Isao Miyashiro  5 , Hiroyuki Ono  6 , Haruhisa Suzuki  7 , Satoshi Tanabe  8 , Shigenori Kadowaki  9 , Kei Muro  9 , Takeo Fukagawa  10 , Souya Nunobe  11 , Takeyuki Wada  12 , Hitoshi Katai  12 , Yasuhiro Kodera  13 ; Registration Committee of the Japanese Gastric Cancer Association
Affiliations

A retrospective 5-year survival analysis of surgically resected gastric cancer cases from the Japanese Gastric Cancer Association nationwide registry (2001-2013)

Yoshihiro Kakeji et al. Gastric Cancer. 2022 Nov.

Abstract

Background: The nationwide registry of the Japanese Gastric Cancer Association collected data of surgically resected cases of gastric cancer between 2001 and 2013. These retrospective analyses aimed to delineate tumor characteristics, surgical history, and survival distribution.

Methods: Data from 254,706 patients with primary gastric cancer were included. The 5-year survival rates were calculated for various subsets of prognostic factors.

Results: The number of patients over 70 years old increased from 2001 to 2013. The frequency with which laparoscopic gastrectomy was opted for increased dramatically (from 3.5 to 40.8%) in 13 years. We focused on the patients registered between 2010 and 2013, for whom data collection was based on the 3rd edition of the Japanese classification and guidelines. Five-year overall survival (OS) rate among 92,305 patients with resected tumors was 70.6%. The 5-year OS rates of patients with pathological stage IA, IB, IIA, IIB, IIIA, IIIB, IIIC, and IV disease were 89.6%, 83.2%, 77.6%, 68.1%, 59.3%, 45.6%, 29.9%, and 14.0%, respectively.

Conclusion: Our detailed analysis highlights the historical changes in outcomes of surgically treated gastric malignancies in Japan, and provides robust dataset for future analysis.

Keywords: Gastric cancer; Nationwide registry; Survival.

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References

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