Table 3.
Left ventricle (LV) ejection fraction and measures by PR interval (PRi).
| Variable | PRi < 120 ms (n = 49) |
PRi 120–200 ms (n = 4552) |
PRi > 200 ms (n = 410) |
Overall P value |
|---|---|---|---|---|
| LV mass (g) | 130.6 (38.5) | 143.7 (38.4) | 163.5 (46.3)+ | <0.001 |
| †LV mass index (g/m2) | 73.5 (16.5) | 71.4 (15.9) | 83.9 (19.5)+ | <0.001 |
| †LV end-systolic volume (mL) | 20.6 (10.4) | 21.2 (7.9) | 22.9 (9.4)+ | <0.001 |
| †LV end-diastolic volume (mL) | 64.2 (15.2)∗ | 67.8 (13.2) | 71.6 (16.1)+ | <0.001 |
| †LV stroke volume (mL) | 43.6 (9.0)∗ | 46.6 (8.8) | 48.6 (10.4)+ | <0.001 |
| LV ejection fraction (%) | 68.6 (8.3) | 69.1 (7.4) | 68.5 (7.8) | 0.3 |
Data shown as mean (standard deviation).
+ P < 0.001 compared to PRi 120–200 ms; ∗ P < 0.01 compared to PRi 120–200 ms.
†Indexed for body surface area [16].