Comparative Quality of Laparoscopic and Open Cholecystectomy in the Elderly Using Propensity Score Matching Analysis
Table 4
Variables associated with length of stay (LOS), total charge (TC), operating room time (min), and Barthel index (BI) improvement.
LOS
TC
Operating room time
BI improvement
Estimation
95% CI
Estimation
95% CI
Estimation
95% CI
Estimation
95% CI
Intercept
11.6
[8.2–14.9]
6937
[5925–7949]
151.5
[132.7–170.3]
37.4
[34.0–40.9]
Age (for 65–74 years)
75–84 years
2.9
[0.2–5.6]
620
[−196–1436]
1.2
[−13.1–15.4]
−6.1
[−8.8–−3.3]
85-years
1.9
[0.6–3.2]
483
[86–880]
−2.3
[−9.2–4.6]
−0.4
[−1.7–1.0]
Male
−0.1
[−1.4–1.2]
174
[−212–560]
6.0
[−0.7–12.7]
1.3
[0.0–2.6]
Ambulance
3.1
[0.8–5.5]
1487
[782–2193]
6.3
[−6.0–18.7]
3.1
[0.7–5.5]
Severity (for noinflammation)
Acute
2.5
[0.9–4.1]
1032
[544–1519]
8.2
[−0.4–16.9]
−0.3
[−2.0–1.3]
Chronic or others
3.8
[2.1–5.6]
1690
[1167–2213]
18.3
[9.0–27.7]
0.8
[−1.0–2.6]
Charlson comorbidity index (for zero)
1
7.3
[4.4–10.2]
2618
[1737–3499]
13.4
[−1.9–28.8]
−1.0
[−3.9–2.0]
2
2.3
[0.3–4.2]
799
[207–1391]
−4.8
[−15.1–5.6]
−0.9
[−2.9–1.1]
3
1.7
[0.1–3.3]
296
[−178–770]
−6.0
[−14.3–2.3]
0.4
[−1.2–2.0]
BI at admission, one point more
−0.046
[−0.073–−0.018]
−22
[−31–−14]
−0.013
[−0.161–0.135]
−0.388
[−0.416–−0.360]
Preoperative ERCP only
8.2
[5.7–10.8]
2147
[1371–2924]
8.6
[−5.0–22.2]
2.2
[−0.5–4.8]
Preoperative BDI
13.7
[12.0–15.3]
5480
[4979–5982]
12.0
[3.1–20.8]
0.9
[−0.8–2.6]
Approach (for laparoscopic cholecystectomy)
Open cholecystectomy
7.9
[6.6–9.3]
1635
[1228–2041]
17.5
[10.1–24.9]
0.5
[−0.9–1.9]
IOC
0.2
[−4.3–4.7]
793
[−563–2149]
7.2
[−17.2–31.6]
−0.8
[−5.4–3.8]
Complication
4.7
[2.6–6.7]
1421
[806–2036]
−3.2
[−5.3–−1.1]
Teaching status (for community)
Academic
0.6
[−1.7–2.9]
427
[−217–1071]
30.7
[15.5–46]
−1.5
[−4.0–1.0]
Akaike informationcriteria
12199
29920
17355
12272
not included in the regression model. CI: confidence interval. BDI: bile duct intervention. ERCP: endoscopic retrograde cholangiopancreatography. IOC: intraoperative cholangiography.
