Skip to main content
. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: World J Surg. 2016 Jun;40(6):1422–1428. doi: 10.1007/s00268-016-3446-9

Table 1.

Demographics

Robotic (n=64) Open (n = 64) p-value
Age (years), median (range) 64 (40 – 91) 63 (29 – 85) 0.50
Male Sex 32 (50%) 29 (45%) 0.72
ASA score, median (range) 3 (2 – 4) 3 (2 – 4) 0.43
Comorbidities
 Htn 27 (42%) 0 (0%) < 0.001
 DM 6 (9.4%) 0 (0%) 0.04
 CAD 3 (4.6%) 0 (0%) 0.25
 Hepatitis 7 (10.9%) 5 (7.8%) 0.77
 COPD 3 (4.7%) 0 (0%) 0.25
Smoking history
 Never 41 (64.1%) 39 (60.9%) 0.77
 Former 17 (26.6%) 20 (31.3%)
 Current 6 (9.4%) 5 (7.8%)
BMI, median (range) 26.7 (17.3 – 45.1) 28 (17.0 – 48) 0.15
Malignant pathology
 Primary liver cancer 12 (18.8%) 11 (17.2%) 0.97
 Metastatic liver cancer 35 (54.7%) 36 (56.3%)
 Gallbladder cancer 3 (4.7%) 4 (6.3%)
Neoadjuvant chemo 24 (37.5%) 25 (39.1%) 0.71
Prior liver resection 5 (7.8%) 6 (9.4%) 1.00

ASA, American Society of Anesthesiologists; Htn, hypertension; DM, diabetes mellitus; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; BMI, body mass index; chemo, chemotherapy