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

118 Volume Outcome KCE reports 113
5.6.5 Definition of outcomes
5.6.5.1 Mortality
Table 5.67 shows that in-hospital and approximate 30-day mortality is 3.8% after lung
cancer surgery. Survival 1 year after surgery is 85.5%. After 2 years it is 73.5%. Mean
(median not defined) survival time was 27 months (not shown in Table 5.67).
Table 5.67: Lung cancer surgery: Mortality results
Number Number
deaths
% deaths Survival
In-hospital and approximate 30-day mortality 1184 45 3.80
1-year mortality 1184 172 14.5 85.5
2-year mortality 1184 314 26.5 73.5
Figure 5.28 confirms how survival improves with decreasing disease stage. Patients with
stage 3 and 4 lung cancer have the worst survival curves while stage 1 and 2 patients
have the best survival. Patients with unknown disease stage, i.e. the purple line in Figure
5.28, are in between the first two stage groups.
Figure 5.29: Lung cancer surgery: Survival curve by stage
X means stage missing.