Table. 1.

Table. 1.

Patient demographics and preoperative investigations

Variable LC + LBDE (n = 256) All LCs (n = 8,489) (includes patients without BDS) p-valuea)
Age (yr) 59 (40–70) 51 (38–64) < 0.01*b)
Sex 0.02*
Female 173 (67.6) 6,285 (74.0)
Male 83 (32.4) 2,204 (26.0)
BMI (kg/m2) 0.07
< 18 1 (0.4) 38 (0.5)
18–25 47 (19.3) 1,664 (20.5)
25–30 102 (41.8) 2,876 (35.5)
31–35 49 (20.1) 1,989 (24.5)
36–40 42 (17.2) 1,509 (18.6)
> 40 3 (1.2) 27 (0.3)
ASA 0.04
ASA I 84 (33.2) 3,263 (38.8)
ASA II 140 (55.3) 4,295 (51.0)
ASA III 29 (11.5) 838 (10.0)
ASA IV 0 (0.0) 21 (0.2)
ASA V 0 (0.0) 1 (0.0)
CT < 0.05*
No 208 (81.3) 7,228 (85.7)
Yes 48 (18.8) 1,207 (14.3)
MRCP < 0.01*
No 144 (56.3) 6,302 (74.6)
Yes 112 (43.8) 2,142 (25.4)
Preoperative ERCP < 0.01*
No 183 (71.5) 7,579 (89.9)
Yes 73 (28.5) 854 (10.1)
EUS 0.57
No 254 (99.2) 8,328 (98.8)
Yes 2 (0.8) 98 (1.2)
IOC < 0.01*
Not performed 55 (21.5) 7,636 (90.0)
Planned 193 (75.4) 755 (8.9)
Unplanned 8 (3.1) 96 (1.1)

Values are presented as median (interquartile range) or number (%).

Some percentages may appear incorrect as BMI was unknown in 398 patients and ASA grade was unknown in 74 patients.

LC, laparoscopic cholecystectomy; LBDE, laparoscopic bile duct exploration; BDS, bile duct stones; BMI, body mass index; ASA, American Society of Anesthesiologists; CT, computed tomography; MRCP, magnetic resonance cholangiopancreatography; ERCP, endoscopic retrograde cholangiopancreatography; EUS, endoscopic ultrasound; IOC, intraoperative cholangiogram.

a)χ2 was used for all statistical test except b)where the Mann–Whitney U-test was used. Statistically significant (*p < 0.05).

Ann Hepatobiliary Pancreat Surg 2022;26:333-8 https://doi.org/10.14701/ahbps.22-001
© 2022 Ann Hepatobiliary Pancreat Surg