Skip to main content

Table 4 Cost-utility sensitivity analysis

From: Cost-utility of routine cataract surgery

  Patients with only one eye operated n = 87 Group A Patients with both eyes operated n = 73 Group B Patients who had had their first eye operated earlier and now the second eye was operated n = 59 Group C
  Costs QALY gain Cost per QALY gained Costs QALY gain Cost per QALY gained Costs QALY gain Cost per QALY gained
Base case analysis using mean values 1318 0.1605 8212 2289 0.4464 5128 1323 -0.0219 Can not be established
Base case analysis using median values 1301 0.0332 39188 2342 0.2989 7835 1195 -0.0234 Can not be established
Sensitivity analysis varying the discount rate for QALYs
discount rate 5%   0.0710 18563   0.2873 7967   -0.0397 Can not be established
discount rate 3%   0.0982 13422   0.3377 6778   -0.0375 Can not be established
discount rate 1%   0.1390 9482   0.4052 5649   -0.0329 Can not be established
Sensitivity analysis varying treatment effectiveness (QALY gain)
upper 95% CI   0.3613 3648   0.7256 3155   0.1716 7710
lower 95% CI   -0.0403 Can not be established   0.1672 13690   -0.2153 Can not be established
Sensitivity analysis varying treatment costs
upper 95% CI 1357   8455 2351   5267 1417   Can not be established
lower 95% CI 1279   7969 2227   4989 1229   Can not be established
  1. Base case and sensitivity analyses varying the discount rate between 1–5%, using median values, and using the upper and lower values of the 95% confidence interval (CI) for the mean differences in treatment effectiveness (improvement in health-related quality of life) and costs (QALY = quality-adjusted life year).