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Table 2 Number of hospitals and cases for complex pancreatic interventions in 2006, 2008, and 2010 and number of cases per quintile

From: Minimum volume standards in German hospitals: do they get along with procedure centralization? A retrospective longitudinal data analysis

 

2006

2008

2010

p

Hospitals with no. of cases ≥ 1

437

444

461

 

Change to 2006

-

+1,6 %

+5,5 %

 

Annual no. of cases

8258

8843

9180

 

Change to 2006

-

+7,1 %

+11,2 %

 

  Min. – max.

1–384

1–395

1–427

 

  Median

11,00

13,00

13,00

 

  Mean (SD)

18,90 (31,6)

19,92 (29,3)

19,91 (29,6)

 

Hospitals complying MVS*: 10 per year

279 (63,8 %)

311 (70,0 %)

328 (71,1 %)

 

No. of cases in hospitals complying MVS

7534 (91,2 %)

8236 (93,1 %)

8576 (93,4 %)

 

Hospitals not complying MVS

158 (36,2 %)

133 (30,0 %)

133 (28,9 %)

 

No. of cases in hospitals not complying MVS

724 (8,8 %)

607 (6,9 %)

604 (6,6 %)

 

Quintile 1 hospitals

87

88

92

 

No. of cases

4794

4938

5087

0,735**

 Percentage of annual cases

58,0 %

55,8 %

55,4 %

 

  Min. – max.

25–384

25–395

27–427

 

  Median

38,00

40,00

39,00

 

  Mean (SD)

55,10 (57,0)

56,11 (50,6)

55,29 (51,8)

 

Quintile 2 hospitals

87

89

92

 

No. of cases

1550

1682

1770

0,002**

 Percentage of annual cases

18,8 %

19,0 %

19,3 %

 

  Min. – max.

14–25

15–25

15–26

 

  Median

17,00

18,00

18,00

 

  Mean (SD)

17,82 (3,4)

18,90 (2,5)

19,24 (3,2)

 

Quintile 3 hospitals

87

89

92

 

No. of cases

1010

1152

1182

<0,001**

 Percentage of annual cases

12,2 %

13,0 %

12,9 %

 

Min. – max.

10–14

11–15

11–15

 

  Median

12,00

13,00

13,00

 

  Mean (SD)

11,61 (1,1)

12,94 (1,3)

12,85 (1,3)

 

  Quintile 4 hospitals

88

89

92

 

No. of cases

673

802

860

<0,001**

 Percentage of annual cases

8,1 %

9,1 %

9,4 %

 

  Min. – max.

5–10

6–11

7–11

 

  Median

8,00

10,00

10,00

 

  Mean (SD)

7,65 (1,6)

9,01 (1,5)

9,35 (1,3)

 

Quintile 5 hospitals

88

89

93

 

No. of cases

231

269

281

0,295**

 Percentage of annual cases

2,8 %

3,0 %

3,1 %

0,999#

  Min. – max.

1–5

1–6

1–6

 

  Median

3,00

3,00

3,00

 

  Mean (SD)

2,63 (1,4)

3,02 (1,8)

3,02 (1,7)

 
  1. *minimum volume standards; **Kruskal-Wallis-test; # chi-square-test