From: Lack of patients? – a hypothesis for understanding discrepancies between hospital resources and productivity
1995
1997
1999
2001
Change %
Patients in high risk DRG groups$
2 629
2 435
2 555
2 548
-3.1
In hospital deaths in these
184
200
238
205
+11.4
Laboratory tests/patientβ
33.4
34.2
32.4
29.2
-12.6
Imaging examinations/patientδ
3.7
3.2
3.1
-15.6