Table 1.
Descriptive statistics
| Department 1 | Department 2 | Department 3 | Department 4 | Department 5 | Department 6 | Department 7 | Department 8 | Department 9 | Department 10 | Department 11 | Total population | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of discharges |
|
|
|
|
|
|
|
|
|
|
|
|
| 2005 |
271 |
718 |
135 |
660 |
514 |
790 |
815 |
433 |
644 |
139 |
6 |
5,125 |
| 2006 |
253 |
662 |
124 |
740 |
557 |
758 |
154 |
35 |
0 |
3 |
11 |
3,297 |
| 2007 |
232 |
742 |
133 |
822 |
557 |
790 |
836 |
428 |
2 |
0 |
83 |
4,625 |
| 2008 |
281 |
771 |
133 |
786 |
573 |
203 |
193 |
475 |
477 |
0 |
64 |
3,956 |
| 2009 |
366 |
799 |
133 |
942 |
681 |
796 |
153 |
504 |
531 |
0 |
46 |
4,951 |
| Total |
1,403 |
3,692 |
658 |
3,950 |
2,882 |
3,337 |
2,151 |
1,875 |
1,654 |
142 |
210 |
21,954 |
| University hospital |
no |
yes |
no |
no |
no |
yes |
yes |
yes |
no |
no |
no |
|
| DRG index |
0.90 |
1.05 |
0.78 |
0.97 |
0.91 |
1.13 |
0.99 |
1.16 |
0.92 |
0.86 |
0.74 |
1.00 |
| Average cost per discharge, actual (DKK) |
84,956 |
64,937 |
57,755 |
69,828 |
58,525 |
80,011 |
94,845 |
91,434 |
63,396 |
115,497 |
41,186 |
73,508 |
| Average cost per discharge, predicted (DKK) |
69,050 |
80,443 |
59,746 |
74,609 |
69,748 |
85,668 |
73,956 |
89,858 |
69,722 |
54,223 |
60,139 |
76,432 |
| Number of vascular operations as a percentage of total at the
department level |
98.8 |
81.6 |
97.4 |
95.1 |
96.1 |
95.6 |
97.8 |
93.4 |
98.7 |
83.1 |
89.5 |
93.6 |
| Average length of stay (days) |
6.1 |
3.7 |
3.7 |
4.8 |
4.9 |
6.3 |
5.2 |
5.5 |
4.3 |
4.1 |
1.7 |
4.92 |
|
Patients |
|
|
|
|
|
|
|
|
|
|
|
|
| Average age |
66.0 |
62.7 |
68.3 |
68.2 |
67.5 |
66.2 |
66.5 |
67.2 |
67.4 |
65.7 |
67.3 |
66.4 |
| Percentage male |
59.4 |
60.8 |
57.9 |
57.0 |
58.3 |
62.4 |
59.8 |
61.9 |
53.6 |
59.9 |
56.2 |
59.3 |
| Percentage smokers |
47.1 |
27.0 |
38.9 |
35.5 |
41.4 |
45.0 |
37.8 |
42.3 |
38.9 |
36.6 |
21.9 |
38.1 |
| Percentage with BMI >25 |
30.3 |
21.5 |
49.4 |
30.1 |
39.2 |
37.4 |
40.8 |
37.3 |
39.1 |
36.6 |
9.0 |
33.3 |
| Percentage with ASA score > 2 |
40.8 |
11.5 |
45.9 |
29.2 |
27.4 |
56.4 |
29.3 |
19.9 |
19.5 |
28.2 |
32.9 |
29.9 |
| Percentage admitted acute |
3.7 |
19.5 |
1.0 |
27.7 |
19.4 |
46.2 |
36.1 |
27.5 |
26.1 |
11.3 |
5.2 |
26.1 |
| 30-day mortality, per cent of discharges |
0.93 |
2.79 |
1.96 |
3.31 |
2.73 |
5.28 |
4.66 |
3.18 |
2.36 |
4.93 |
0.5 |
3.36 |
| Wound complications, per cent of discharges |
13.78 |
6.51 |
8.84 |
8.60 |
8.41 |
14.86 |
5.05 |
13.75 |
11.32 |
7.04 |
5.47 |
9.68 |
| Infections, per cent of discharges |
2.04 |
1.19 |
1.31 |
2.05 |
2.28 |
3.99 |
1.05 |
4.27 |
2.74 |
0 |
0 |
2.30 |
| Surgical complications, per cent of discharges |
1.76 |
2.87 |
2.45 |
4.13 |
3.43 |
6.99 |
5.38 |
5.20 |
4.35 |
5.63 |
0 |
4.26 |
| General complications, per cent of discharges | 3.70 | 5.46 | 4.26 | 7.34 | 4.34 | 14.75 | 8.38 | 7.23 | 6.03 | 9.15 | 1.49 | 7.44 |
NOTE: Some observations are excluded from the analysis due to poor quality and/or a small number of observations. All observations from departments 10 and 11 are excluded in the analysis. Inclusion rules are explained in the data section. Table 1 includes all observations in data.