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Figure 11 shows a part of the decision tree, starting with the third branch and the Charlson Index.
Interestingly enough, the Charlson Index is somewhat scattered throughout the tree, and the other vari-
Table 5. Charlson index and disease staging: length of stay
charlson
Disease Staging: Length of Stay Level
Total
Frequency
Row Pct
Col Pct
1
2
3
4
5
0
234037
5.16
77.51
1226126
27.03
86.76
2381418
52.50
57.56
539219
11.89
31.70
155472
3.43
35.51
4536272
1
51830
3.03
17.16
133132
7.79
9.42
961228
56.25
23.23
449931
26.33
26.45
112811
6.60
25.77
1708932
2
13227
1.43
4.38
38714
4.18
2.74
461011
49.73
11.14
331913
35.80
19.51
82206
8.87
18.78
927071
3
1801
0.38
0.60
9631
2.03
0.68
207722
43.76
5.02
208733
43.98
12.27
46759
9.85
10.68
474646
4
268
0.14
0.09
2092
1.06
0.15
73819
37.56
1.78
98419
50.07
5.79
21964
11.17
5.02
196562
5
586
0.70
0.19
2622
3.13
0.19
31391
37.46
0.76
40335
48.13
2.37
8868
10.58
2.03
83802
6
165
0.39
0.05
685
1.61
0.05
14575
34.20
0.35
21326
50.04
1.25
5866
13.76
1.34
42617
7
28
0.21
0.01
151
1.14
0.01
4152
31.47
0.10
6777
51.36
0.40
2086
15.81
0.48
13194
8
10
0.18
0.00
48
0.84
0.00
1600
28.14
0.04
2897
50.96
0.17
1130
19.88
0.26
5685
9
0
0.00
0.00
10
0.56
0.00
475
26.75
0.01
889
50.06
0.05
402
22.64
0.09
1776
10
0
0.00
0.00
3
0.46
0.00
167
25.50
0.00
324
49.47
0.02
161
24.58
0.04
655
11
0
0.00
0.00
0
0.00
0.00
35
16.13
0.00
126
58.06
0.01
56
25.81
0.01
217
12
0
0.00
0.00
0
0.00
0.00
16
22.54
0.00
39
54.93
0.00
16
22.54
0.00
71
13
0
0.00
0.00
0
0.00
0.00
0
0.00
0.00
8
66.67
0.00
4
33.33
0.00
12
Total
301952
1413214
4137609
1700936
437801
7991512
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