Table 3 Descriptive statistics and equality tests of WTP per QALY using PC and OE formats
Questionnaires | WTP technique | N | Zero response, N (%) | Mean | Standard deviation | Median | Minimum | Maximum |
|---|---|---|---|---|---|---|---|---|
Mild, 0.2 QALY | PC | 26 | 1 (3.8%) | 37,890 | 32,658 | 28,426 | 500 | 129,000 |
OE | 25 | 4 (16%) | 25,476 | 20,243 | 23,000 | 5000 | 100,000 | |
Mild, 0.4 QALY | PC | 25 | 0 (0%) | 21,595 | 12,914 | 16,125 | 8000 | 64,500 |
OE | 25 | 4 (16%) | 18,119 | 27,211 | 7500 | 500 | 125,000 | |
Moderate, 0.2 QALY | PC | 21 | 0 (0%) | 75,631 | 107,888 | 64,500 | 16,000 | 516,000 |
OE | 21 | 2 (10%) | 105,447 | 125,083 | 100,000 | 2500 | 516,000 | |
Moderate, 0.4 QALY | PC | 23 | 1 (4.3%) | 51,295 | 54,553 | 32,250 | 8000 | 258,000 |
OE | 22 | 3 (13.6%) | 84,934 | 83,739 | 75,000 | 1250 | 250,000 | |
Severe, 0.2 QALY | PC | 22 | 0 (0%) | 34,409 | 18,187 | 32,250 | 16,000 | 64,500 |
OE | 19 | 2 (11%) | 40,000 | 36,827 | 25,000 | 10,000 | 150,000 | |
Severe, 0.4 QALY | PC | 23 | 5 (21.7%) | 13,278 | 9666 | 8000 | 750 | 32,250 |
OE | 20 | 1 (5%) | 19,868 | 20,331 | 12,500 | 1250 | 75,000 | |
Terminal illness, 0.2 QALY | PC | 25 | 1 (4%) | 280,177 | 219,279 | 258,000 | 16,000 | 1,000,000 |
OE | 18 | 11 (61%) | 570,714 | 413,727 | 420,000 | 75,000 | 1,000,000 | |
Terminal illness, 0.4 QALY | PC | 26 | 1 (4%) | 232,600 | 120,808 | 258,000 | 64,500 | 516,000 |
OE | 25 | 0 (0%) | 221,000 | 127,614 | 200,000 | 25,000 | 500,000 | |
Immediate death, 0.2 QALY | PC | 19 | 2 (11%) | 273,647 | 237,721 | 129,000 | 16,000 | 750,000 |
OE | 26 | 3 (12%) | 620,913 | 1,019,954 | 500,000 | 15,000 | 5,000,000 | |
Immediate death, 0.4 QALY | PC | 25 | 1 (4%) | 189,984 | 286,863 | 64,500 | 8000 | 1,250,000 |
OE | 25 | 4 (16%) | 242,381 | 235,387 | 250,000 | 7500 | 750,000 |