Pancreaticoduodenectomy: Volume is not Associated with Outcome within an Academic Health Care System

Table 1

Characteristics of patients who underwent pancreaticoduodenectomy at UCSF-affiliated hospitals, 1989–2003.

Characteristics	ML	LVHG	𝑃 value^†
Age, mean (median), year	61 (64)	62 (62)	.887
Sex, no. (%)^‡	—	—	<.0001
Male	153 (50.8)	59 (86.8)	—
Race, no. (%)^‡	—	—	<.0001
Asian	33 (11)	7 (10.4)	—
African american	8 (2.7)	13 (19.4)	—
Hispanic	17 (5.6)	5 (7.5)	—
Caucasian	206 (68.4)	37 (55.2)	—
Other	37 (12.3)	5 (7.5)	—
ASA Rating, no. (%)^‡	—	—	.605
1	4 (1.3)	1 (3.8)	—
2	142 (47.8)	12 (46.2)	—
3	148 (49.8)	13 (50)	—
4	3 (1)	0 (0)	—

^†According to the Kruskal-Wallis test for continuous data or Fisher's exact test for categorical data.
^‡Numbers may not sum to group total because data was not available for all patients.