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

KCE Reports 113 Volume Outcome 49
Table 5.6: Oesophageal cancer surgery: Patient and tumour characteristics
Number Percent
Age (years)
mean/median 63.9/65
Std 10.2
Total 343
Sex
Male 275 80.17
Female 68 19.83
Total 343
Tumour location
Oesophagus 190 69.3
Cardia 84 30.7
Total 274
Tumour histology
Squamous Cell Carcinoma 75 27.4
Adenocarcinoma 184 67.1
Other 15 5.5
Total 274
Tumour stage
I 51 22.1
II 75 32.5
III 86 37.3
IV 19 8.2
Total 231
5.2.4 Definition of volume
As shown in Table 5.7, these 343 procedures were performed in 72 centres by 99
surgeons (some surgeons operate in more than 1 hospital). Three quarters of the
hospitals performed 4 procedures or less. Four hospitals and six surgeons had an annual
volume higher than 10 procedures (see Figure 5.1 and Figure 5.2).
Table 5.7: Oesophageal cancer surgery: Summary measures of volume per
hospital and per surgeon
25th 50th 75th
Number mean min Pctl Pctl Pctl Max
Hospitals 72 4.8 1.0 1.0 2.5 4.0 70.0
Surgeons* 99 3.1 1.0 1.0 1.0 3.0 41.0
* For 34 procedures (9.9%) the information on surgeon ID was missing.