Fig 1.
Decision tree showing the decision tree pathways in the people with body and tail of pancreatic cancer who underwent distal pancreatectomy.
Table 1.
Parameters used in the model and their source.
Table 2.
Results of deterministic analysis (per patient).
Table 3.
Results of probabilistic sensitivity analysis (per patient).
Fig 2.
Scatter plot of incremental cost per incremental quality-adjusted life year.
The scatter plot shows that the points lie almost symmetrical about the X-axis, i.e. the costs were similar between laparoscopic and open distal pancreatectomy, but most points lie to the right of the Y-axis, i.e. laparoscopic distal pancreatectomy was associated with increased quality-adjusted life years (QALYs).
Fig 3.
Cost-effectiveness acceptability curve.
The cost-effectiveness acceptability curve shows that the probability laparoscopic distal pancreatectomy was cost-effective compared to open distal pancreatectomy was 70% to 80% at the willingness-to-pay thresholds generally used in England (£20,000 to £30,000 per QALY gained).
Fig 4.
Univariate sensitivity analysis (Tornado diagram).
The tornado diagram shows that there is significant uncertainty in the results, especially with regards to mortality.
Table 4.
Results of probabilistic sensitivity analysis (per patient) (scenario analysis 1).
Table 5.
Results of probabilistic sensitivity analysis (per patient) (scenario analysis 2).