Table 3 Summary of categorical variables in estimation and validation datasets
Variable | Estimation dataset, n (%) | Validation dataset, n (%) | Mean (SD) EQ-5D (estimation dataset) | p-value (estimation dataset) |
|---|---|---|---|---|
Gender | Â | Â | Â | 0.04 |
   Male | 2059 (72) | 1361 (72) | 0.69 (0.30) |  |
   Female | 796 (28) | 526 (28) | 0.66 (0.29) |  |
CCS class | Â | Â | Â | <0.001 |
   0 | 499 (18) | 319 (17) | 0.81 (0.24) |  |
   I | 513 (18) | 306 (16) | 0.78 (0.21) |  |
   II | 801 (28) | 509 (27) | 0.70 (0.23) |  |
   III | 364 (13) | 252 (13) | 0.49 (0.29) |  |
   IV | 326 (11) | 265 (14) | 0.38 (0.33) |  |
Disease stage proxy | Â | Â | Â | <0.001 |
   MM | 1241 (44) | 815 (43) | 0.71 (0.28) |  |
   Pre PCI | 116 (4) | 63 (3) | 0.77 (0.21) |  |
   Post PCI | 428 (15) | 259 (14) | 0.70 (0.29) |  |
   Pre CABG/SCS/laser | 66 (2) | 47 (3) | 0.76 (0.20) |  |
   Post CABG/SCS/laser | 993 (35) | 698 (37) | 0.61 (0.31) |  |