Table 1.

Patient and procedure characteristics.

Parameter	1972–1992 (n = 761)		1993–2014 (n = 346)		p
	n or median	% or IQR	n or median	% or IQR
Gender					0.897
Female	342	44.9	157	45.4
Male	419	55.1	189	54.6
Age	65	56–71	67	57–74	0.001
Gastrectomy					<0.001
Total	325	42.7	196	56.6
Subtotal	436	57.3	150	43.4
Multivisceral resection	345	45.3	158	47.0	0.645
Splenectomy	306	40.2	69	20.5	<0.001
Cholecystectomy	41	5.4	79	23.5	<0.001
Intestinal resection	17	2.2	12	3.6	0.222
Hepatic procedure	9	1.2	11	3.3	0.025
Pancreatic procedure	21	2.8	8	2.4	0.840
Missing data	0		10

p values in bold type indicate statistical significance.