Open colectomy vs. laparoscopic colectomy in Japan: a retrospective study using real-world data from the diagnosis proce
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ORIGINAL ARTICLE
Open colectomy vs. laparoscopic colectomy in Japan: a retrospective study using real‑world data from the diagnosis procedure combination database Takehide Tajima1 · Jun Nagata1 · Yasuki Akiyama1 · Takayuki Torigoe1 · Kenji Fujimoto3 · Norihiro Sato1 · Yoshihisa Fujino2 · Kazunori Shibao1 · Shinya Matsuda3 · Keiji Hirata1 Received: 4 February 2020 / Accepted: 27 March 2020 © Springer Nature Singapore Pte Ltd. 2020
Abstract Purpose To compare the short-term outcomes of conventional open colectomy with those of laparoscopic colectomy for colon cancer. Methods We retrieved data between January 2014 and March 2016 from the Diagnosis Procedure Combination database. A total of 69,418 patients who underwent colectomy for colon cancer were analyzed from among 15,901,766 cases of colorectal cancer. We applied a multilevel logistic regression model using a 2-level structure of individuals nested from 1065 hospitals. Results A total of 22,440 open colectomy and 46,978 laparoscopic colectomy procedures were performed. The in-hospital mortality rate was significantly lower in the laparoscopic group than in the open group (0.28% vs. 0.06%, odds ratio [OR] 0.40, p
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