Table 2.
Correlation coefficient analysis between direct and reconstructed expression ratios.
Only ratios from spots with intensity values 2 SD above the average slide background were used to calculate Pearson's correlations or Spearman's rank-correlations. The number of intensity values used in each correlation analysis is shown (n). All Pearson correlation values were statistically significant (p-value for rejecting Ho: r = 0 << 10-5).
| Kidney vs. Breast | Prostate vs. Breast | Prostate vs. Kidney | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Pearson | Spearman | n | Pearson | Spearman | n | Pearson | Spearman | n | |
| Direct vs. RefOligo | 0.47 | 0.45 | 672 | 0.56 | 0.53 | 671 | 0.26 | 0.22 | 464 |
| Direct vs. RefPool | 0.48 | 0.43 | 643 | 0.58 | 0.57 | 632 | 0.31 | 0.19 | 445 |
| Direct vs. One-Color | 0.45 | 0.42 | 669 | 0.53 | 0.49 | 671 | 0.28 | 0.25 | 464 |