Comparative Quality of Laparoscopic and Open Cholecystectomy in the Elderly Using Propensity Score Matching Analysis
Table 1
Patient characteristics, care process, and outcomes according cholecystectomy procedure (, %).
Aged 65 years or more
Laparoscopic cholycystectomy (3692)
Open cholecystectomy (1224)
P
Number of patients; community, academic
2621, 1071
929, 295
Number of hospitals; community, academic
87, 35
83, 34
Age
Mean
72.7 [5.6]
75.2 [6.5]
65–74 years
2461 (66.7)
619 (50.6)
<.001
75–84 years
1104 (29.9)
485 (39.6)
≥85-years
127 (3.4)
120 (9.8)
Sex
Male
1706 (46.2)
741 (60.5)
<.001
Ambulance
Used
120 (3.3)
172 (14.1)
<.001
Outcome
Mortality
2 (0.1)
19 (1.6)
<.001
Destination
not at home
101 (2.7)
97 (7.9)
<.001
Severity
Acute
493 (13.4)
520 (42.5)
<.001
Chronic or others
1168 (31.6)
405 (33.1)
Charlson comorbidity index
1
670 (18.1)
262 (21.4)
<.001
2
272 (7.4)
152 (12.4)
3
87 (2.4)
74 (6.0)
Preoperative ERCP only
131 (3.5)
67 (5.5)
.003
Preoperative BDI
372 (10.1)
270 (22.1)
<.001
IOC
132 (3.6)
28 (2.3)
.028
Study complication
351 (9.5)
175 (14.3)
<.001
Acute pancreatitis
35 (0.9)
14 (1.1)
Peritonitis
18 (0.5)
24 (2.0)
Bowel obstruction
4 (0.1)
8 (0.7)
Change of BI
Deterioration
55 (1.5)
28 (2.3)
<.001
No change
2669 (72.3)
741 (60.5)
Improvement
130 (3.5)
123 (10)
Teaching status
Academic
1071 (29)
295 (24.1)
.001
BI at admission
95.6
86.5
<.001†
BI at discharge
96.5
90.9
<.001†
BI improvement
0.9
4.4
<.001†
Compared using analysis of variance. Other comparisons made using Fisher's exact test standard deviation. C: community. A: academic. ERCP: endoscopic retrograde cholangiopancreatography, BDI: bile duct intervention. IOC: intraoperative cholangiography
