Table 4.
Phenotypic and genetic correlation between repolarization ECG parameters at each heart rate.
| Frequency/Parameter comparison | Phenotypic correlation | Genetic correlation between parameters | Contribution of genetic factors to phenotypic co-variance |
|---|---|---|---|
| LOW | |||
| QT-TpTe | 0.38 (0.22–0.51) | 0.38 (0.05–0.63) | 65% (9–97%) |
| QT-Th | −0.28 (−0.43 to −0.12) | −0.42 (−0.70 to −0.12) | 100% (39–00%) |
| TpTe-Th | −0.39 (−0.52 to −0.24) | −0.58 (−0.93 to −0.26) | 92% (47–100%) |
| MEDIUM | |||
| QT-TpTe | 0.32 (0.16–0.45) | ns | ns |
| QT-Th | −0.25 (−0.40 to −0.09) | −0.46 (−0.82 to −0.15) | 100% (58–100%) |
| TpTe-Th | −0.18 (−0.33 to −0.02) | −0.36 (−0.75 to −0.06) | 100% (58–100%) |
| HIGH | |||
| QT-TpTe | 0.31 (0.15–0.46) | ns | ns |
| QT-Th | ns | ns | – |
| TpTe-Th | ns | ns | – |
99% CIs are shown in parentheses.