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Table 3. Length of stay and total charges by procedure
Principal procedure
N Obs
Variable
Mean
Std Dev
Minimum
Maximum
3610
8
TOTCHG
LOS
65496.75
5.8750000
20519.46
1.3562027
39277.00
3.0000000
99584.00
7.0000000
3611
5112
TOTCHG
LOS
90656.52
8.9047340
68257.93
7.5870299
84.0000000
0
829195.00
161.0000000
3612
13449
TOTCHG
LOS
96585.12
9.3835973
73855.08
7.4754109
534.0000000
0
997836.00
153.0000000
3613
13176
TOTCHG
LOS
101269.45
9.5980571
75537.11
7.3233339
2029.00
0
998991.00
188.0000000
3614
7208
TOTCHG
LOS
103371.69
9.6594062
74343.53
7.4100765
839.0000000
0
918286.00
155.0000000
3615
6419
TOTCHG
LOS
92813.63
8.7963857
66991.61
6.6919820
484.0000000
0
898653.00
114.0000000
3616
508
TOTCHG
LOS
89716.19
8.1909449
56349.01
6.1948121
20786.00
1.0000000
461205.00
78.0000000
3617
3
TOTCHG
LOS
78057.33
6.3333333
56807.84
2.3094011
43820.00
5.0000000
143632.00
9.0000000
3619
24
TOTCHG
LOS
88172.17
8.0833333
56691.47
7.6437907
20741.00
1.0000000
282273.00
32.0000000
Figure 23. Length of stay by procedure
that there is considerable difference in the procedures performed across the hospitals. For example,
#1 has over 50% of procedures identified as 3615, Single internal mammary-coronary artery bypass.
The remaining hospitals are more divided in their procedures. Hospital #4 has almost 30% in 3614,
(Aorto)coronary bypass of four or more coronary arteries, suggesting that it treats patients with very
severe blockage in the coronary vessels. The same hospital has approximately 20% of the procedures
in 3611, 3612, and 3613.
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