Table 3.
Multivariable linear regression of age and prostate volume with PSA, PCA3 score, T2:ERG score, and MPS
| Coefficient (95% CI) | t | p value | Model R2 | ||
|---|---|---|---|---|---|
| ln(PSA) | Age | 0.005 (−0.003 to 0.01) | 1.11 | 0.3 | 0.17 |
| ln(PV) | 1.28 (1.08 to 1.49) | 12.5 | <0.001 | 0.45 | |
| Age + ln(PV) | 0.45 | ||||
| ln(PCA3 score) | Age | 0.05 (0.04 to 0.06) | 7.51 | <0.001 | 0.21 |
| ln(PV) | −0.05 (−0.38 to 0.28) | −0.29 | 0.8 | 0.05 | |
| Age + ln(PV) | 0.20 | ||||
| ln(T2:ERG score) | Age | 0.02 (−0.01 to 0.06) | 1.25 | 0.2 | 0.01 |
| ln(PV) | 0.06 (−0.8 to 0.9) | 0.14 | 0.9 | 0.004 | |
| Age + ln(PV) | 0.01 | ||||
| ln(MPS) | Age | 0.04 (0.03 to 0.05) | 7.45 | <0.001 | 0.29 |
| ln(PV) | 0.50 (0.22 to 0.77) | 3.56 | <0.001 | 0.18 | |
| Age + ln(PV) | 0.31 |
CI = confidence interval; ln = natural logarithm (loge); MPS = MyProstateScore; PSA = prostate-specific antigen; PV = prostate volume (cm3).