The Charlson Comorbidity Index - Text Mining Techniques for Healthcare Provider Quality Determination - page 169

Table 12. Summary statistics for length of stay and total charges

charlson N Obs Variable Mean Std Dev Minimum Maximum N

0 4538105 LOS

TOTCHG

3.8132948
16946.36

6.4827794
33463.31

0
25.0000000

365.0000000
999720.00

4537934
4457967

1 1708386 LOS

TOTCHG

5.0914773
26524.86

6.7995739
41152.46

0
25.0000000

364.0000000
999926.00

1708259
1685723

2 926681 LOS

TOTCHG

5.9793568
31218.01

7.3538667
46997.48

0
29.0000000

364.0000000
998514.00

926601
913823

3 474424 LOS

TOTCHG

6.5102839
33083.38

7.4676395
47701.57

0
25.0000000

335.0000000
998508.00

474383
467085

4 196448 LOS

TOTCHG

6.9255654
34317.32

7.5988107
48332.13

0
29.0000000

308.0000000
998461.00

196441
193419

5 83760 LOS

TOTCHG

6.6702365
32904.84

7.4820287
45877.64

0
29.0000000

314.0000000
986244.00

83757
82342

6 42603 LOS

TOTCHG

7.2759050
33847.22

8.6108387
51960.12

0
35.0000000

233.0000000
991975.00

42598
42003

7 13188 LOS

TOTCHG

7.3181680
33837.62

8.6143188
51531.71

0
32.0000000

311.0000000
950447.00

13188
13012

8 5683 LOS

TOTCHG

8.2118599
39683.73

10.3810108
60616.23

0
58.0000000

206.0000000
893263.00

5683
5608

9 1775 LOS

TOTCHG

8.5729577
41507.33

9.4393066
58197.17

0
660.0000000

89.0000000
865888.00

1775
1740

10 654 LOS

TOTCHG

8.9188361
44892.91

10.5716006
62465.84

0
1181.00

107.0000000
691096.00

653
644

11 217 LOS

TOTCHG

8.8202765
44177.88

10.1210248
79898.36

0
2322.00

108.0000000
877351.00

217
213

12 71 LOS

TOTCHG

11.1690141
47114.89

15.4836189
57476.33

0
2400.00

88.0000000
256315.00

71
70

13 12 LOS

TOTCHG

6.2500000
48569.75

4.8453352
84774.64

1.0000000
3246.00

18.0000000
307731.00

12
12

univar totchg/gridl= 0 gridu= 50000 out=nis.kdetotchg3 method=srot bwm= 4 ;
by charlson;
where charlson= 0 ;
run ;
proc kde data=nis.charlsonsample;
univar los/gridl= 0 gridu= 20 out=nis.kdelos method=srot bwm= 2 ;
univar totchg/gridl= 0 gridu= 50000 out=nis.kdetotchg method=srot bwm= 2 ;
by charlson;
where charlson< 3 and charlson> 0 ;
run ;
proc kde data=nis.charlsonsample;
univar los/gridl= 0 gridu= 20 out=nis.kdelos2 method=srot bwm= 2 ;
univar totchg/gridl= 0 gridu= 50000 out=nis.kdetotchg2 method=srot bwm= 2 ;
by charlson;
where charlson> 2 and charlson< 9 ;