Table 4.
Associations of selected echocardiographic parameters with incident AF, before and after adjustment for height or body surface area
| Parameter | Variable | HR (CI) | χ2 | P-value |
|---|---|---|---|---|
| LA diameter (LAD) | ||||
| LAD (per SD) | 1.31 (1.23–1.40) | 72.85 | <0.001 | |
| LAD/height (per SD) | 1.26 (1.18–1.34) | 52.10 | <0.001 | |
| LAD/BSA (per SD) | 1.18 (1.11–1.26) | 24.93 | <0.001 | |
| LV mass (LVM) | ||||
| LVM (per SD) | 1.28 (1.21–1.36) | 68.18 | <0.001 | |
| LVM/height (per SD) | 1.25 (1.18–1.33) | 57.92 | <0.001 | |
| LVM/BSA (per SD) | 1.21 (1.14–1.28) | 41.93 | <0.001 | |
| LV diastolic dimension (LVDD) | ||||
| LVDD (per SD) | 1.18 (1.11–1.25) | 25.42 | <0.001 | |
| LVDD/height (per SD) | 1.11 (1.04–1.18) | 11.00 | <0.001 | |
| LVDD/BSA (per SD) | 1.00 (0.94–1.07) | 0.01 | 0.92 | |
All analyses adjusted for clinic site, race, and education; stratified by age and sex. LA diameter measured in cm, LV mass measured in g, and LV diastolic dimension measured in cm. All HR are reported per unit of measurement. n = 4528.