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Het volume van chirurgische ingrepen en de impact ervan op ... - KCE

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<strong>KCE</strong> Reports 113 Volume Outcome 171<br />

7.1.4 Definition of <strong>volume</strong><br />

Table 7.6 shows that 115 hospitals performed 103 elective total hip arthr<strong>op</strong>lasties on<br />

average in 2004. One hospital performed 608 procedures, the second in <strong>volume</strong><br />

accounting for 396 procedures. Three quarters of the hospitals performed 121 elective<br />

THR or less.<br />

Table 7.6: Total hip arthr<strong>op</strong>lasty: Summary measures of <strong>volume</strong> per hospital<br />

Number Minimum Mean 25th Pctl 50th Pctl 75th Pctl Maximum<br />

115 5.0 103.1 42.0 84.0 121.0 608.0<br />

Figure 7.1: Total hip arthr<strong>op</strong>lasty: Volume per hospital<br />

Table 7.7 gives information on the number of elective THR per surgeon. For surgeons<br />

who work in several hospitals, a sum was ma<strong>de</strong> of all their THR. On average, a surgeon<br />

performed 23 elective THR in 2004. The maximum was 250 elective THR. Three<br />

quarters of surgeons performed 27 elective THR or less.<br />

Table 7.7: Total hip arthr<strong>op</strong>lasty: Summary measures of <strong>volume</strong> per surgeon<br />

Number Minimum Mean 25th Pctl 50 Pctl 75th Pctl Maximum<br />

522 1.0 22.7 4.0 11.0 27.0 250.0

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