Circumstance of endoscopic and laparoscopic treatments for gastric cancer in Japan: A review of epidemiological studies using a national administrative database

Table 2 Reports of endoscopic and laparoscopic treatments for gastric cancer using national administrative database

	No. of patients	No. of hospitals	Study period	Investigated outcomes
Endoscopic submucosal dissection
Murata et al[27]	32943	907	2009-2011	Complications, length of stay, and medical costs
Murata et al[30]	27385	867	2009-2011	Complications and length of stay
Murata et al[36]	27385	867	2009-2011	Complications, length of stay, and medical costs
Laparoscopic gastrectomy
Yasunaga et al[40]	9388	805	2010	Complications, length of stay, medical costs, in-hospital mortality and 30-d readmission rates
Kuwabara et al[41]	17761	258	2006-2008	Length of hospital stay, medical costs and operative time
Murata et al[42]	14006	744	2009-2011	Complications, length of stay, medical costs and in-hospital mortality
Kuwabara et al[46]	3054	420	2007	Complications and operative time
Kuwabara et al[47]	3914	258	2006-2008	Complications, length of stay, medical costs, in-hospital mortality and blood transfusions
Ryu et al[48]	209	5	2007-2008	Length of hospital stay (pre and post operative) and duration of antibiotic administration and post operative fasting