Table 4.
Multivariable adjusted differences in LV measures and ejection fraction by presence of a prolonged PR interval (>200 ms) versus PR interval 120–200 ms.
| LV measures | Model 1 β (95% CI) |
Model 2 β (95% CI) |
Model 3 β (95% CI) |
|---|---|---|---|
| LV mass (g) | 7.17 (4.41, 9.94) | 6.13 (3.38, 8.89) | 5.51 (2.89, 8.13) |
| †LV mass index (g/m2) | 3.57 (2.11, 5.03) | 2.91 (1.45, 4.36) | 2.56 (1.18, 3.94) |
| LV end-systolic volume (mL) | 2.55 (1.09, 4.01) | 2.56 (1.09, 4.04) | 2.72 (1.25, 4.20) |
| LV end-diastolic volume (mL) | 8.21 (5.69, 10.73) | 6.93 (4.46, 9.41) | 6.80 (4.32, 9.28) |
| LV stroke volume (mL) | 5.67 (3.94, 7.39) | 4.37 (2.71, 6.03) | 4.07 (2.41, 5.72) |
| LV ejection fraction (%) | 0.14 (−0.57, 0.85) | −0.12 (−0.83, 0.59) | −0.26 (−0.97, 0.45) |
Model 1 adjusted for age, sex, race, height, and weight. Model 2 adds heart rate and site to Model 1. Model 3 adds systolic blood pressure, use of antihypertensive medications, current smoking status, and diabetes to Model 2.
†LV mass indexed for body surface area [16].