Table 2.
Validity and Efficiency of Conditional Test
Mean # Mutations Per Tumor |
Clonality Signal |
Mean # Matching Mutations |
Frequency of p<0.051 | ||
---|---|---|---|---|---|
Unconditional Test (Calibrated) |
Conditional Test | Conditional Test (Calibrated) |
|||
5 | 0.0 | 0.10 | 0.05 | 0.01 | 0.05 |
5 | 0.1 | 0.56 | 0.41 | 0.36 | 0.40 |
5 | 0.25 | 1.32 | 0.72 | 0.65 | 0.70 |
10 | 0.0 | 0.21 | 0.05 | 0.02 | 0.05 |
10 | 0.1 | 1.17 | 0.60 | 0.57 | 0.59 |
10 | 0.25 | 2.60 | 0.92 | 0.89 | 0.90 |
20 | 0.0 | 0.45 | 0.04 | 0.03 | 0.05 |
20 | 0.1 | 2.41 | 0.83 | 0.81 | 0.82 |
20 | 0.25 | 5.28 | 0.99 | 0.99 | 0.99 |
Each row of the table involved a simulation with 10,000 markers in which the reference distribution for the test involved sampling from the null distribution 5000 times, and in which the test was repeated 1000 times to estimate the size (when the clonality signal is 0) or power (when the clonality signal is >0). The marginal frequencies were constructed in the following way:- For configurations with 5 mutations per tumor 10 of the loci had a marginal probability of 0.10 and the remaining 9990 had a marginal probability of 0.0004. For configurations with 10 mutations per tumor 20 of the loci had a marginal probability of 0.10 and the remaining 9980 had a marginal probability of 0.0008. For configurations with 20 mutations per tumor 20 of the loci had a marginal probability of 0.10 and the remaining 9960 had a marginal probability of 0.00016.