Principal Procedure Code & Name Volume Percent Cumulative
38.12—OTHER HEAD & NECK ENDARTERECTOMY
7,691
100.00
100.00
Total
7,691
100.00


Volume of Procedures
Number of Hospitals
Percent of Hospital Total
Cumulative Percent of Hospital Total
1
9
5.66
5.66
2
6
3.77
9.43
3
6
3.77
13.21
4
4
2.52
15.72
5
2
1.26
16.98
6
4
2.52
19.50
7
6
3.77
23.27
8
4
2.52
25.79
10
5
3.14
28.93
11
3
1.89
30.82
12
2
1.26
32.08
13
4
2.52
34.59
15
2
1.26
35.85
17
3
1.89
37.74
18
3
1.89
39.62
19
3
1.89
41.51
21
3
1.89
43.40
22
1
0.63
44.03
23
2
1.26
45.28
24
2
1.26
46.54
25
2
1.26
47.80
26
3
1.89
49.69
27
3
1.89
51.57
28
1
0.63
52.20
29
2
1.26
53.46
31
1
0.63
54.09
32
1
0.63
54.72
33
2
1.26
55.97
34
2
1.26
57.23
35
2
1.26
58.49
36
1
0.63
59.12
38
1
0.63
59.75
40
2
1.26
61.01
41
2
1.26
62.26
42
2
1.26
63.52
44
1
0.63
64.15
45
2
1.26
65.41
46
1
0.63
66.04
47
1
0.63
66.67
48
1
0.63
67.30
49
4
2.52
69.81
57
1
0.63
70.44
61
2
1.26
71.70
63
2
1.26
72.96
64
1
0.63
73.58
65
3
1.89
75.47
67
1
0.63
76.10
68
1
0.63
76.73
70
2
1.26
77.99
71
1
0.63
78.62
72
1
0.63
79.25
73
1
0.63
79.87
75
1
0.63
80.50
78
1
0.63
81.13
79
2
1.26
82.39
80
1
0.63
83.02
81
1
0.63
83.65
82
1
0.63
84.28
83
1
0.63
84.91
96
1
0.63
85.53
98
1
0.63
86.16
101
1
0.63
86.79
104
1
0.63
87.42
110
1
0.63
88.05
111
1
0.63
88.68
115
1
0.63
89.31
119
1
0.63
89.94
123
1
0.63
90.57
129
1
0.63
91.19
131
1
0.63
91.82
138
1
0.63
92.45
146
1
0.63
93.08
151
1
0.63
93.71
158
1
0.63
94.34
161
1
0.63
94.97
162
2
1.26
96.23
194
1
0.63
96.86
218
1
0.63
97.48
240
1
0.63
98.11
273
1
0.63
98.74
345
1
0.63
99.37
368
1
0.63
100.00
Total
159
100.00
 
Volume of Procedures Number of Doctors Percent of Doctors Total Cumulative Percent of Doctors Total
1
234
36.85
36.85
2
43
6.77
43.62
3
31
4.88
48.50
4
35
5.51
54.02
5
22
3.46
57.48
6
20
3.15
60.63
7
22
3.46
64.09
8
15
2.36
66.46
9
17
2.68
69.13
10
3
0.47
69.61
11
12
1.89
71.50
12
14
2.20
73.70
13
6
0.94
74.65
14
7
1.10
75.75
15
10
1.57
77.32
16
13
2.05
79.37
17
5
0.79
80.16
18
9
1.42
81.57
19
4
0.63
82.20
20
4
0.63
82.83
21
1
0.16
82.99
22
4
0.63
83.62
23
1
0.16
83.78
24
2
0.31
84.09
25
6
0.94
85.04
26
8
1.26
86.30
27
4
0.63
86.93
28
6
0.94
87.87
29
5
0.79
88.66
30
3
0.47
89.13
31
5
0.79
89.92
32
4
0.63
90.55
33
3
0.47
91.02
34
1
0.16
91.18
35
2
0.31
91.50
36
3
0.47
91.97
37
1
0.16
92.13
38
2
0.31
92.44
39
2
0.31
92.76
40
2
0.31
93.07
41
1
0.16
93.23
42
1
0.16
93.39
43
3
0.47
93.86
44
2
0.31
94.17
46
4
0.63
94.80
49
3
0.47
95.28
50
3
0.47
95.75
51
1
0.16
95.91
52
1
0.16
96.06
53
1
0.16
96.22
56
1
0.16
96.38
59
3
0.47
96.85
60
1
0.16
97.01
63
2
0.31
97.32
64
2
0.31
97.64
65
1
0.16
97.80
66
1
0.16
97.95
68
2
0.31
98.27
76
1
0.16
98.43
91
1
0.16
98.58
96
2
0.31
98.90
111
1
0.16
99.06
123
1
0.16
99.21
125
1
0.16
99.37
129
1
0.16
99.53
175
1
0.16
99.69
205
1
0.16
99.84
248
1
0.16
100.00
Total
635
100.00
 

Hospitals Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
1
1
10%
3
1
Hospitals(Obs.)
159
25%
8
1
Sum of Wgt.
159
1
50%
27
Mean
48.37107
Four Largest Volumes
Std. Dev.
61.08062
75%
65
240
90%
123
273
Variance
3,730.842
95%
162
345
Skewness
2.56581
99%
345
368
Kurtosis
11.29984
 
Doctors Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
1
1
10%
1
1
Doctors(Obs.)
635
25%
1
1
Sum of Wgt.
635
1
50%
4
Mean
11.99528
Four Largest Volumes
Std. Dev.
22.22778
75%
14
129
90%
32
175
Variance
494.0741
95%
49
205
Skewness
4.973354
99%
111
248
Kurtosis
39.36304




 
 

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