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Table 1 A comparison of SMR outcomes of model 1 and model 2

From: Variations in hospital standardised mortality ratios (HSMR) as a result of frequent readmissions

CCS
code
CCS-diagnostic group title Number of admissions Distance between
model 1
and 2 (R2)
Number of hospitals with
SMR significantly high?
c-statistic for
     Model 1: no
model 2: yes
Model 1: yes
model 2: no
Model 1 Model 2
2 Septicemia (except in labour) 14647 0.83 2 1 0.760 0.783
12 Cancer of oesophagus 9703 0.74 1 3 0.730 0.763
13 Cancer of stomach 13945 0.75 0 2 0.733 0.779
14 Cancer of colon 45116 0.77 2 5 0.773 0.814
15 Cancer of rectum and anus 22246 0.72 1 3 0.771 0.817
17 Cancer of pancreas 9950 0.76 1 0 0.685 0.704
19 Cancer of bronchus, lung 76714 0.75 4 6 0.792 0.822
24 Cancer of breast 64126 0.74 2 1 0.916 0.850
29 Prostate cancer 24092 0.76 3 1 0.886 0.865
32 Cancer of bladder 44288 0.71 1 0 0.872 0.874
38 Non-Hodgkin's lymphoma 19413 0.69 0 5 0.802 0.841
39 Leukaemias 12466 0.77 0 1 0.781 0.820
42 Secondary malignancies 69303 0.77 5 4 0.748 0.770
44 Neoplasms unspec nature or uncertain behaviour 18982 0.63 2 1 0.805 0.840
50 Diabetes mellitus with complications 36837 0.74 1 0 0.824 0.846
55 Fluid and electrolyte disorders 29705 0.81 0 1 0.795 0.824
59 Deficiency and other anaemia 48896 0.61 0 1 0.756 0.802
85 Coma, stupor and brain damage 4286 0.92 0 0 0.801 0.815
96 Heart valve disorders 30708 0.77 1 2 0.775 0.788
100 Acute myocardial infarction 91802 0.72 1 1 0.740 0.781
101 Coronary atherosclerosis and other heart disease 250183 0.66 1 2 0.784 0.805
103 Pulmonary heart disease 26937 0.78 0 1 0.754 0.776
106 Cardiac dysrhythmias 174923 0.72 1 2 0.828 0.860
107 Cardiac arrest and ventricular fibrillation 8118 0.89 2 2 0.739 0.764
108 Congestive heart failure, non-hypertensive 108541 0.63 4 1 0.637 0.702
109 Acute cerebrovascular disease 102295 0.86 3 0 0.744 0.761
114 Peripheral and visceral atherosclerosis 44090 0.94 1 3 0.908 0.914
115 Aortic, peripheral and visceral artery aneurysms 26538 0.93 1 1 0.871 0.887
116 Aortic & peripheral arterial embolism or thrombosis 32881 0.75 1 1 0.882 0.892
117 Other circulatory disease 20452 0.80 0 1 0.849 0.862
122 Pneumonia 128867 0.74 2 0 0.753 0.785
127 COPD and bronchiectasis 82898 0.60 0 2 0.701 0.761
129 Aspiration pneumonitis 4485 0.79 1 1 0.644 0.688
130 Pleurisy, pneumothorax, pulmonary collapse 24798 0.78 0 0 0.812 0.827
133 Other lower respiratory disease 99460 0.77 1 0 0.854 0.866
145 Intestinal obstruction without hernia 34802 0.76 1 1 0.813 0.836
146 Diverticulosis and diverticulitis 35917 0.70 0 0 0.814 0.828
149 Biliary tract disease 135587 0.80 1 0 0.894 0.899
150 Liver disease, alcohol-related 5133 0.69 0 2 0.678 0.758
151 Other liver diseases 14584 0.80 1 0 0.771 0.807
153 Gastrointestinal haemorrhage 37229 0.71 0 1 0.738 0.764
155 Other gastrointestinal disorders 45487 0.91 0 0 0.907 0.908
157 Acute and unspecified renal failure 8804 0.73 0 0 0.723 0.760
158 Chronic renal failure 14570 0.75 0 2 0.846 0.872
159 Urinary tract infections 62382 0.77 0 0 0.817 0.836
226 Fracture of neck of femur (hip) 74557 0.73 0 2 0.719 0.732
233 Intracranial injury 56535 0.95 0 1 0.939 0.941
237 Complication of device, implant or graft 76079 0.69 0 0 0.821 0.833
238 Complications surgical procedures or medical care 67106 0.76 0 0 0.827 0.833
249 Shock 3150 0.80 1 0 0.716 0.733
  Total all CCS diagnostic groups 2494613 0,86 49 64 0.852 0.867
  1. * Per CCS diagnostic group: number of admissions; statistical distance between model 1 and model 2; number of hospitals with significance differences of SMRs comparing model 1 to model 2, c-statistics for both models. The table includes results of 70 Dutch hospitals over the period 2005 - 2009