1.7. Analysis.

Comparison 1 Duodenum‐preserving pancreatic resection versus pancreaticoduodenectomy, Outcome 7 Length of hospital stay.

Length of hospital stay
Study	Mean or median in duodenum‐preserving pancreatic head resection group (days)	Mean or median in pancreatoduodenectomy group (days)	Difference in means or median (days)	Statistical significance
Buchler 1995	13 days (median)	14 days (median)	‐1 days	Not reported
Farkas 2006	8.5 days (mean)	13.8 days (mean)	‐5.3 days	P < 0.05 (statistically significant)
Keck 2012	13 days (median)	14 days (median)	‐1 days	P = 0.17 (not statistically significant)
Klempa 1995	16.5 days (mean)	21.7 days (mean)	‐5.2 days	P < 0.05 (statistically significant)