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Table 2 Parameters of the most frequent procedures (P1-P3)

From: Effect of patient’s age on the profitability of inpatient cardiac catheterization: a contribution margin analysis of frequently performed procedures over a 5-year period

Procedure P1

Diagnostic catheter with closure device

Young

Old

Very old

F

P-value

n = 600

n = 600

n = 600

48 ± 7 years

63 ± 7 years

76 ± 5 years

DRG revenue (Euro)

2077 ± 917

2122 ± 1024

2398 ± 1028

18

<0.001

DRG revenue per day (Euro)

592 ± 253

600 ± 276

535 ± 278

11

<0.001

Contribution margin (Euro)

1771 ± 922

1804 ± 1029

2065 ± 1033

16

<0.001

Contribution margin per day (Euro/d)

484 ± 206

488 ± 234

440 ± 226

9

<0.001

Relative DRG weight

0.73 ± 0.27

0.77 ± 0.37

0.85 ± 0.34

19

<0.001

LOS (d)

4.5 ± 3.9

4.6 ± 3.8

6.2 ± 4.8

33

<0.001

Fluoroscopy time (min)

2.5 ± 2.5

2.7 ± 2.8

3.5 ± 3.8

19

<0.001

Material expenditure (Euro)

172 ± 39

171 ± 28

178 ± 48

4.6

0.01

Procedure P2

Diagnostic catheter without closure device

Young

Old

Very old

F

P-value

n = 149

n = 149

n = 148

50 ± 9 years

62 ± 4 years

76 ± 5 years

DRG revenue (Euro)

2079 ± 798

1994 ± 1029

2383 ± 1193

6.3

0.003

DRG revenue per day (Euro)

579 ± 243

586 ± 268

497 ± 261

6.0

0.004

Contribution margin (Euro)

1801 ± 812

1695 ± 1020

2079 ± 1120

5.7

0.004

Contribution margin per day (Euro/d)

482 ± 200

472 ± 223

419 ± 211

3.9

0.02

Relative weight

0.74 ± 0.26

0.73 ± 0.33

0.81 ± 0.33

5.6

ns

Length of hospital stay (d)

4.5 ± 3.0

4.5 ± 4.1

7.0 ± 6.3

14

<0.001

Fluoroscopy time (min)

3.7 ± 4.0

5.6 ± 6.6

5.2 ± 5.1

4.4

0.01

Material expenditure (Euro)

104 ± 34

109 ± 39

122 ± 56

836

0.002

Procedure P3

Combined diagnostic left and right heart catheter with closure device

Young

Old

Very old

F

P-value

n = 136

n = 136

n = 137

52 ± 8 years

67 ± 3 years

77 ± 4 years

DRG revenue (Euro)

2021 ± 697

2225 ± 1197

2681 ± 3008

4.2

0.01

DRG revenue per day (Euro)

604 ± 219

566 ± 208

516 ± 211

5.9

0.003

Contribution margin (Euro)

1646 ± 695

1827 ± 1182

2266 ± 3018

3.8

0.02

Contribution margin per day (Euro/d)

475 ± 180

444 ± 166

415 ± 172

4.3

0.02

Relative weight

0.73 ± 0.25

0.79 ± 0.38

0.94 ± 1.1

3.7

0.02

Length of hospital stay (d)

4.1 ± 3.1

5.1 ± 5.1

6.6 ± 6.2

8.7

<0.001

Fluoroscopy time (min)

3.9 ± 4.0

4.4 ± 5.2

4.6 ± 6.6

-

ns

Material expenditure (Euro)

219 ± 30

221 ± 34

238 ± 163

-

ns

  1. DRG Diagnosis Related Groups
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BMC Health Services Research

ISSN: 1472-6963

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