Table 4 Correlations and multivariate linear regression coefficients
Characteristic | Univariate r | Multivariate beta | Multivariate beta, final model | Global R2 |
|---|---|---|---|---|
Derivation cohort (n = 200) | 0.26 (p < 0.001) | |||
Hematocrit (%) | −0.37 (p < 0.001) | 0.00 (p = 0.98) | ||
Mean blood R1 (ms-1) | −0.45 (p < 0.001) | −0.28 (p = 0.003) | −0.28 (p = 0.001) | |
Mean blood R1* (ms-1) | −0.45 (p < 0.001) | −0.28 (p = 0.002) | −0.28 (p = 0.001) | |
Septal wall thickness (mm) | 0.07 (p = 0.33) | - | - | |
Validation cohort (n = 200) | ||||
Hematocrit (%) | −0.39 (p < 0.001) | |||
Mean blood R1 (ms-1) | −0.49 (p < 0.001) | |||
Mean blood R1* (ms-1) | −0.44 (p < 0.001) | |||
Septal wall thickness (mm) | 0.07 (p = 0.32) | - | - | |