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Table 5 In-hospital Mortality of Major Hepatobiliary Surgery According to Hospital Volume Categories, Stratified by Underlying Disease

From: In-hospital mortality and failure to rescue following hepatobiliary surgery in Germany - a nationwide analysis

  

Hospital Volume Categories

Very Low (1–10)

Low (11–20)

Medium (21–40)

High (41–100)

Very High (> 100)

Major Liver Surgery

 All Indications

n/N

488/4208

269/2480

274/2646

406/4399

349/3540

Obs Rate %

11.6

10.9

10.4

9.2

9.9

Adj Rate % (95% CI)

11.4 (10.4–12.5)

10.1 (9.0–11.3)

9.19 (8.1–10.4)

8.0 (7.3–8.9)

7.4 (6.6–8.2)

 Metastatic Disease

n/N

139/2149

74/1248

65/1221

91/1852

60/1250

Obs Rate %

6.5

5.9

5.3

4.9

4.8

Adj Rate % (95% CI)

6.5 (5.4–7.6)

5.4 (4.3–6.8)

5.02 (3.9–6.4)

4.83 (3.9–5.9)

4.67 (3.6–6.0)

 Malignant Neoplasm

n/N

265/1286

148/813

159/982

250/1736

239/1702

Obs Rate %

20.6

18.2

16.2

14.4

14.0

Adj Rate % (95% CI)

18.8 (16.6–21.2)

15.8 (13.3–18.5)

13.34 (11.3–15.6)

11.86 (10.4–13.4)

10.59 (9.3–12.0)

 Benign Disease

n/N

11/229

10/151

10/170

16/355

7/247

Obs Rate %

4.8

6.6

5.9

4.5

2.8

Adj Rate % (95% CI)

4.5 (2.3–8.1)

6.2 (3.0–11.3)

5.8 (2.8–10.6)

4.02 (2.3–6.5)

3.7 (1.5–7.6)

 Other Medical

n/N

73/544

37/268

40/273

49/456

43/341

 Indicationa

Obs Rate %

13.4

13.8

14.7

10.8

12.6

Adj Rate % (95% CI)

12.9 (10.1–16.2)

13.6 (9.6–18.7)

14.81 (10.6–20.2)

11.26 (8.3–14.9)

11.4 (8.2–15.3)

  1. Data are in n/N. Observed Rates (Obs Rate) in % and Adjusted Rates (Adj Rate) in % (95% CI). Covariates used for risk adjustment are displayed in Appendix Table 2
  2. aIncluding Liver Injury
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