Table III. Patient characteristics and performance outcomes for “early” and “late” patients stratified by disease type: neoplasm or focal chronic pancreatitis.

	Neoplasm				Focal chronic pancreatitis
	Total N=10	Early N=5	Late N=5	p†	Total N=24	Early N=12	Late N=12	p††
Patient characteristics
Female	10 (100%)	5 (100%)	5 (100%)	–	12 (50%)	5 (41.7%)	7 (58.3%)	0.68
Age (yrs)	51.0 (19.9)	54.6 (19.6)	47.4 (21.9)	0.60	48.8 (13.8)	46.2 (14.4)	51.3 (13.2)	0.37
Interventional Radiology*	1 (10%)	0	1 (20%)	1	1 (4.2%)	0	1 (8.3%)	1
Performance outcomes
Operative time (min)	257.8 (62.7)	249.2 (55.0)	266.4 (75.1)	0.69	239.2 (56.6)	246.1 (48.3)	232.3 (65.2)	0.56
Blood loss (ml)	335.0 (208.2)	330.0 (243.9)	340.0 (194.9)	1††	881.7 (1329.7)	716.7 (628.2)	1046.7 (1800.7)	0.49††
Co-morbidities	5 (50%)	3 (60%)	2 (40%)	1	11 (45.8%)	4 (33.3%)	7 (58.3%)	0.41
Pancreatic fistula	4 (40%)	2 (40%)	2 (40%)	1	6 (25%)	1 (8.3%)	5 (41.7%)	0.16
Hospital length of stay	9.6 (4.8)	10.0 (5.8)	9.2 (4.2)	0.81	9.0 (4.9)	9.3 (5.4)	8.7 (4.6)	0.75
Margin negative resection	8 (80%)	4 (80%)	4 (80%)	1	NA	NA	NA	NA
Tumor size	2.5 (1.6)	2.7 (1.8)	2.2 (1.4)	0.67	NA	NA	NA	NA
Hospital readmission	3 (30%)	2 (40%)	1 (20%)	1	1 (4.2%)	1 (8.3%)	0	1
Number of post-operative complications	5 (50%)	2 (40%)	3 (60%)	1	11 (45.8%)	4 (33.3%)	7 (58.3%)	0.41

^†p-values are based on two-sample t-test for continuous variables and Fisher's exact test for binary variables.

^††p-value is based on Wilcoxon rank-sum test due to outliers. For other continuous variables, Wilcoxon rank-sum test was also conducted and the p-values are similar to the t-test.

*Patients requiring interventional radiologic drainage of postoperative fluid collections.