Principal Procedure Code & Name Volume Percent Cumulative
81.54—TOTAL KNEE REPLACEMENT
16,908
100.00
100.00
Total
16,908
100.00


Volume of Procedures
Number of Hospitals
Percent of Hospital Total
Cumulative Percent of Hospital Total
1
6
3.09
3.09
2
8
4.12
7.22
3
1
0.52
7.73
4
2
1.03
8.76
5
6
3.09
11.86
6
4
2.06
13.92
7
3
1.55
15.46
8
3
1.55
17.01
9
2
1.03
18.04
10
2
1.03
19.07
11
3
1.55
20.62
12
1
0.52
21.13
13
2
1.03
22.16
14
4
2.06
24.23
15
3
1.55
25.77
16
2
1.03
26.80
17
5
2.58
29.38
18
1
0.52
29.90
19
1
0.52
30.41
20
1
0.52
30.93
21
5
2.58
33.51
22
7
3.61
37.11
24
3
1.55
38.66
25
2
1.03
39.69
27
1
0.52
40.21
28
1
0.52
40.72
31
1
0.52
41.24
32
2
1.03
42.27
33
1
0.52
42.78
34
2
1.03
43.81
35
2
1.03
44.85
37
1
0.52
45.36
38
1
0.52
45.88
39
2
1.03
46.91
41
4
2.06
48.97
44
2
1.03
50.00
45
3
1.55
51.55
46
1
0.52
52.06
47
1
0.52
52.58
49
1
0.52
53.09
50
2
1.03
54.12
51
1
0.52
54.64
52
3
1.55
56.19
54
1
0.52
56.70
56
2
1.03
57.73
58
1
0.52
58.25
59
1
0.52
58.76
60
1
0.52
59.28
61
2
1.03
60.31
62
2
1.03
61.34
64
1
0.52
61.86
66
1
0.52
62.37
68
2
1.03
63.40
70
1
0.52
63.92
71
1
0.52
64.43
75
1
0.52
64.95
76
2
1.03
65.98
78
1
0.52
66.49
80
1
0.52
67.01
81
3
1.55
68.56
90
1
0.52
69.07
97
1
0.52
69.59
98
1
0.52
70.10
99
1
0.52
70.62
100
2
1.03
71.65
101
2
1.03
72.68
104
2
1.03
73.71
105
1
0.52
74.23
108
1
0.52
74.74
109
1
0.52
75.26
111
1
0.52
75.77
112
2
1.03
76.80
113
1
0.52
77.32
114
1
0.52
77.84
116
2
1.03
78.87
117
1
0.52
79.38
118
2
1.03
80.41
119
1
0.52
80.93
130
1
0.52
81.44
131
1
0.52
81.96
141
2
1.03
82.99
142
1
0.52
83.51
148
2
1.03
84.54
153
2
1.03
85.57
158
1
0.52
86.08
160
1
0.52
86.60
162
1
0.52
87.11
163
1
0.52
87.63
164
1
0.52
88.14
165
1
0.52
88.66
179
1
0.52
89.18
185
1
0.52
89.69
188
1
0.52
90.21
190
1
0.52
90.72
191
1
0.52
91.24
211
1
0.52
91.75
214
1
0.52
92.27
218
1
0.52
92.78
221
1
0.52
93.30
223
1
0.52
93.81
245
1
0.52
94.33
262
1
0.52
94.85
301
1
0.52
95.36
333
1
0.52
95.88
379
1
0.52
96.39
380
1
0.52
96.91
391
1
0.52
97.42
405
1
0.52
97.94
525
1
0.52
98.45
598
1
0.52
98.97
959
1
0.52
99.48
1,438
1
0.52
100.00
Total
194
100.00
 
Volume of Procedures Number of Doctors Percent of Doctors Total Cumulative Percent of Doctors Total
1
128
15.84
15.84
2
58
7.18
23.02
3
40
4.95
27.97
4
39
4.83
32.80
5
16
1.98
34.78
6
21
2.60
37.38
7
30
3.71
41.09
8
23
2.85
43.94
9
23
2.85
46.78
10
17
2.10
48.89
11
26
3.22
52.10
12
17
2.10
54.21
13
12
1.49
55.69
14
20
2.48
58.17
15
16
1.98
60.15
16
15
1.86
62.00
17
13
1.61
63.61
18
14
1.73
65.35
19
4
0.50
65.84
20
9
1.11
66.96
21
4
0.50
67.45
22
11
1.36
68.81
23
13
1.61
70.42
24
10
1.24
71.66
25
9
1.11
72.77
26
10
1.24
74.01
27
11
1.36
75.37
28
9
1.11
76.49
29
9
1.11
77.60
30
10
1.24
78.84
31
6
0.74
79.58
32
10
1.24
80.82
33
3
0.37
81.19
34
7
0.87
82.05
35
3
0.37
82.43
36
3
0.37
82.80
37
4
0.50
83.29
38
6
0.74
84.03
39
6
0.74
84.78
40
2
0.25
85.02
41
5
0.62
85.64
42
5
0.62
86.26
43
3
0.37
86.63
44
7
0.87
87.50
45
2
0.25
87.75
46
6
0.74
88.49
47
1
0.12
88.61
48
3
0.37
88.99
49
2
0.25
89.23
50
1
0.12
89.36
51
4
0.50
89.85
52
3
0.37
90.22
53
4
0.50
90.72
54
1
0.12
90.84
55
1
0.12
90.97
57
6
0.74
91.71
59
4
0.50
92.20
60
4
0.50
92.70
61
2
0.25
92.95
62
2
0.25
93.19
64
4
0.50
93.69
65
5
0.62
94.31
66
3
0.37
94.68
67
1
0.12
94.80
69
1
0.12
94.93
70
1
0.12
95.05
71
1
0.12
95.17
72
4
0.50
95.67
73
2
0.25
95.92
75
2
0.25
96.16
76
1
0.12
96.29
77
2
0.25
96.53
78
1
0.12
96.66
81
2
0.25
96.91
84
1
0.12
97.03
87
1
0.12
97.15
90
1
0.12
97.28
93
1
0.12
97.40
98
1
0.12
97.52
99
1
0.12
97.65
100
1
0.12
97.77
101
2
0.25
98.02
103
1
0.12
98.14
105
2
0.25
98.39
106
1
0.12
98.51
108
1
0.12
98.64
110
1
0.12
98.76
112
1
0.12
98.89
114
1
0.12
99.01
115
1
0.12
99.13
117
1
0.12
99.26
127
1
0.12
99.38
134
1
0.12
99.50
136
1
0.12
99.63
193
1
0.12
99.75
226
1
0.12
99.88
759
1
0.12
100.00
Total
808
100.00
 

Hospitals Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
2
1
10%
5
1
Hospitals(Obs.)
194
25%
15
1
Sum of Wgt.
194
1
50%
44.5
Mean
87.15464
Four Largest Volumes
Std. Dev.
149.2007
75%
109
525
90%
188
598
Variance
22,260.84
95%
301
959
Skewness
5.429879
99%
959
1,438
Kurtosis
42.65152
 
Doctors Volume
Percentiles
Volumes
Four Smallest Volumes
1%
1
1
5%
1
1
10%
1
1
Doctors(Obs.)
808
25%
3
1
Sum of Wgt.
808
1
50%
11
Mean
20.75866
Four Largest Volumes
Std. Dev.
36.13883
75%
27
136
90%
52
193
Variance
1,306.015
95%
70
226
Skewness
11.42215
99%
114
759
Kurtosis
219.2059




 
 

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