Table 3.
Effects of numerous variables on the frontal planar QRS-T angle in univariate correlation analysis and multivariate linear regression analysis
| Univariate correlation analysis |
Multivariate regression analysis |
|||
|---|---|---|---|---|
| r | p value | unstandardized coefficients B (95% CI) | p value | |
| Age | 0.170 | 0.003 | 0.285 (–0.142 to 0.711) | 0.190 |
| Heart rate | 0.142 | 0.013 | 0.272 (–0.089 to 0.634) | 0.139 |
| QTc | 0.209 | <0.001 | 0.224 (0.085 to 0.363) | 0.002 |
| Hypertension | 0.205 | <0.001 | 12.529 (3.936 to 21.121) | 0.004 |
| LMCA diameter | 0.229 | <0.001 | 11.421 (4.356 to 18.486) | 0.002 |
| LAD proximal diameter | 0.112 | 0.051 | −4.303 (−17.936 to 9.331) | 0.535 |
| LAD distal diameter | 0.111 | 0.053 | 1.121 (–15.240 to 17.481) | 0.893 |
| CFX diameter | 0.038 | 0.508 | –1.224 (–5.409 to 2.961) | 0.565 |
| RCA proximal diameter | 0.002 | 0.966 | –3.385 (–9.713 to 2.943) | 0.293 |
| RCA distal diameter | –0.002 | 0.976 | 3.224 (–9.031 to 15.480) | 0.605 |
QTc, corrected QT; LMCA, left main coronary artery; LAD, left anterior descending coronary artery; CFX, circumflex artery; RCA, right coronary artery.