Principal Procedure Code & Name Volume Percent Cumulative
85.41—UNILATERAL SIMPLE MASTECTOMY
1,983
31.02
31.02
85.42—BILATERAL SIMPLE MASTECTOMY
391
6.12
37.14
85.43—UNILATERAL EXTENDED SIMPLE MASTECTOMY
3,825
59.84
96.98
85.44—BILATERAL EXTENDED SIMPLE MASTECTOMY
193
3.02
100.00
Total
6,392
100.00


Volume of Procedures
Number of Hospitals
Percent of Hospital Total
Cumulative Percent of Hospital Total
1
7
3.30
3.30
2
15
7.08
10.38
3
8
3.77
14.15
4
9
4.25
18.40
5
11
5.19
23.58
6
4
1.89
25.47
7
7
3.30
28.77
8
5
2.36
31.13
9
9
4.25
35.38
10
5
2.36
37.74
11
8
3.77
41.51
12
5
2.36
43.87
13
8
3.77
47.64
14
6
2.83
50.47
15
4
1.89
52.36
16
7
3.30
55.66
17
6
2.83
58.49
18
4
1.89
60.38
19
3
1.42
61.79
20
4
1.89
63.68
21
3
1.42
65.09
22
1
0.47
65.57
23
1
0.47
66.04
24
1
0.47
66.51
25
2
0.94
67.45
26
4
1.89
69.34
27
3
1.42
70.75
28
1
0.47
71.23
30
1
0.47
71.70
33
4
1.89
73.58
34
1
0.47
74.06
37
3
1.42
75.47
39
1
0.47
75.94
40
2
0.94
76.89
41
2
0.94
77.83
43
2
0.94
78.77
44
1
0.47
79.25
47
2
0.94
80.19
49
1
0.47
80.66
50
2
0.94
81.60
51
1
0.47
82.08
52
3
1.42
83.49
53
2
0.94
84.43
54
2
0.94
85.38
57
1
0.47
85.85
60
2
0.94
86.79
63
1
0.47
87.26
64
2
0.94
88.21
65
2
0.94
89.15
70
1
0.47
89.62
71
1
0.47
90.09
79
3
1.42
91.51
80
2
0.94
92.45
81
1
0.47
92.92
82
1
0.47
93.40
92
1
0.47
93.87
93
1
0.47
94.34
96
1
0.47
94.81
97
1
0.47
95.28
99
1
0.47
95.75
113
1
0.47
96.23
118
1
0.47
96.70
125
1
0.47
97.17
131
1
0.47
97.64
145
2
0.94
98.58
183
1
0.47
99.06
216
1
0.47
99.53
628
1
0.47
100.00
Total
212
100.00
 
Volume of Procedures Number of Doctors Percent of Doctors Total Cumulative Percent of Doctors Total
1
324
30.86
30.86
2
151
14.38
45.24
3
108
10.29
55.52
4
80
7.62
63.14
5
61
5.81
68.95
6
63
6.00
74.95
7
42
4.00
78.95
8
27
2.57
81.52
9
25
2.38
83.90
10
27
2.57
86.48
11
19
1.81
88.29
12
20
1.90
90.19
13
7
0.67
90.86
14
7
0.67
91.52
15
7
0.67
92.19
16
10
0.95
93.14
17
8
0.76
93.90
18
5
0.48
94.38
19
4
0.38
94.76
20
1
0.10
94.86
21
3
0.29
95.14
22
6
0.57
95.71
23
2
0.19
95.90
24
2
0.19
96.10
25
2
0.19
96.29
26
2
0.19
96.48
27
2
0.19
96.67
28
2
0.19
96.86
29
2
0.19
97.05
30
1
0.10
97.14
32
2
0.19
97.33
33
2
0.19
97.52
36
1
0.10
97.62
37
3
0.29
97.90
38
5
0.48
98.38
40
1
0.10
98.48
41
1
0.10
98.57
44
1
0.10
98.67
49
1
0.10
98.76
51
1
0.10
98.86
54
1
0.10
98.95
58
1
0.10
99.05
59
1
0.10
99.14
61
1
0.10
99.24
63
1
0.10
99.33
64
1
0.10
99.43
74
1
0.10
99.52
78
1
0.10
99.62
80
1
0.10
99.71
86
1
0.10
99.81
99
1
0.10
99.90
111
1
0.10
100.00
Total
1,050
100.00
 

Hospitals Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
2
1
10%
2
1
Hospitals(Obs.)
212
25%
6
1
Sum of Wgt.
212
1
50%
14
Mean
30.15094
Four Largest Volumes
Std. Dev.
53.23431
75%
37
145
90%
71
183
Variance
2,833.892
95%
97
216
Skewness
7.276851
99%
183
628
Kurtosis
77.27047
 
Doctors Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
1
1
10%
1
1
Doctors(Obs.)
1,050
25%
1
1
Sum of Wgt.
1,050
1
50%
3
Mean
6.048571
Four Largest Volumes
Std. Dev.
10.0264
75%
7
80
90%
12
86
Variance
100.5286
95%
21
99
Skewness
5.045355
99%
58
111
Kurtosis
37.14539




 
 

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