Table 2. . Mean and range of the overall correlation R2 from the same individual between cord blood and placental methylation values (first line) and between placental and predicted placental methylation values obtained with both support vector machine model (second line) and linear regression model (third line).
| Tissue pair |
All probes |
|
|---|---|---|
| Mean R2 | Range | |
| Cord blood – placenta |
0.65 |
0.52–0.72 |
| Placenta – SVM predicted placenta |
0.98 |
0.96–0.99 |
| Placenta – LM predicted placenta | 0.98 | 0.96–0.99 |
R2 is the square of the Pearson correlation coefficient.
LM: Linear regression model; SVM: Support vector machine.