Table 2.
Patients Were Not Willing to Trade off Longer Wait Times or Decreased Success Rate of the Test to Maintain Their Choice of Biopsy (Baseline Values: 2-Week Waiting Period; 80% Chance in Test Conclusively Determining an Appropriate Treatment Option)
| Pts Who Preferred Blood Test Over Tissue Biopsy | Pts Who Preferred Tissue Biopsy Over Blood Test | |||
|---|---|---|---|---|
| N=372 (90%) | N=41 (10%) | |||
| Wait times | Switched in response to increased wait times | Never switched (strong preference for blood test) | Switched in response to increased wait times | Never switched (strong preference for tissue biopsy) |
| Proportion of Patients | 91% | 9% | 95% | 5% |
| Number of extra weeks of wait time tolerated before switching, Mean (SD) | 1.8 (2.1) | – | 2.0 (3.2) | – |
| Test Conclusiveness | Switched in response to decreased test conclusiveness | Never switched (strong preference for blood test) |
Switched in response to decreased test conclusiveness | Never switched (strong preference for tissue biopsy) |
| Proportion of Patients | 94% | 6% | 96% | 4% |
| Percentage decrease in test conclusiveness patients tolerated before switching, Mean (SD) | 6.2 (8.8) | – | 3.4 (7.2) | – |
Abbreviation: SD, standard deviation.