Use of a saline-coupled bipolar sealer open liver resection for hepatic malignancy: Medical resource use and costs

Table 3 Clinical characteristics n (%)

	Unmatched		P value	Matched		P value
	SCBS	No SCBS		SCBS	No SCBS
n	152	2993		144	720
Procedure Type
Partial hepatectomy	99 (65.1)	2061 (68.9)	0.308	98 (68.1)	478 (66.4)	0.772
Lobectomy	53 (34.9)	964 (32.2)	0.552	46 (31.9)	251 (34.9)	0.564
Indicating diagnosis
Primary hepatobiliary malignancy	63 (41.5)	850 (28.4)	0.001	56 (38.9)	300 (41.7)	0.599
Metastatic liver neoplasm	89 (58.6)	2143 (71.6)	0.001	88 (61.1)	420 (58.3)	0.599
Comorbid liver diagnoses
Alcoholic cirrhosis	1 (0.66)	33 (1.1)	0.908	1 (0.69)	4 (0.56)	1.000
Non-alcoholic cirrhosis	23 (15.1)	287 (9.6)	0.036	20 (13.9)	100 (13.9)	1.000
Hepatitis A	0 (0)	6 (0.2)	1.000	0 (0)	0 (0)	N/A
Hepatitis B	18 (11.8)	193 (6.4)	0.015	16 (11.1)	96 (13.3)	0.556
Hepatitis C	17 (11.2)	271 (9.1)	0.457	17 (11.8)	71 (9.9)	0.580
Charlson score group1			0.518			0.704
0	76 (50)	1637 (54.7)		74 (51.4)	370 (51.4)
1	45 (29.6)	816 (27.3)		43 (29.9)	196 (27.2)
≥ 2	31 (20.4)	540 (18.0)		27 (18.8)	154 (21.4)
Provider specialty
Surgical oncology	59 (38.8)	531 (17.7)	< 0.001	56 (38.9)	285 (39.6)	0.950
General surgery	79 (52.0)	1993 (66.6)	< 0.001	74 (51.4)	369 (51.3)	1.000
Other	14 (9.2)	469 (15.7)	0.041	14 (9.7)	66 (9.2)	0.958
Surgeon experience
≥ 1 liver procedure in prior year	125 (82.2)	1991 (66.6)	< 0.001	117 (81.3)	595 (82.6)	0.780

¹Excluding primary malignancy, metastatic solid tumor, mild liver disease, moderate or severe liver disease. P values were calculated with the χ² test (or Fisher’s Exact where cell frequencies < 10), t-test (or Wilcoxon Mann-Whitney test for skewed distributions). SCBS: Saline-coupled bipolar sealer.