Table 1.
Baseline characteristics by left atrial volume index (LAVI)
| Variable | LAVI (ml/m2) |
p Value | |
|---|---|---|---|
| <40 (n = 749; 80%) |
≥40 (n = 186; 20%) |
||
| Age (yrs) | 66 ± 11 | 69 ± 11 | 0.0004 |
| Men | 610 (81%) | 152 (82%) | 0.77 |
| Systolic blood pressure (mm Hg) | 132 ± 20 | 137 ± 24 | 0.01 |
| Diastolic blood pressure (mm Hg) | 75 ± 11 | 74 ± 12 | 0.53 |
| Body mass index (kg/m2) | 29 ± 5 | 28 ± 5 | 0.07 |
| Body surface area (m2) | 2.0 ± 0.2 | 1.9 ± 0.2 | 0.02 |
| Race | |||
| White | 433 (58%) | 120 (65%) | 0.10 |
| Black | 128 (17%) | 31 (17%) | 0.88 |
| Asian | 91 (12%) | 14 (8%) | 0.07 |
| Other | 96 (13%) | 21 (11%) | 0.57 |
| History of: | |||
| Hypertension | 578 (69%) | 144 (78%) | 0.02 |
| MI | 400 (54%) | 105 (56%) | 0.52 |
| Stroke | 105 (14%) | 25 (13%) | 0.82 |
| Diabetes mellitus | 200 (27%) | 45 (24%) | 0.47 |
| HF | 106 (14%) | 57 (31%) | <0.0001 |
| Revascularization (surgical or percutaneous) | 428 (57%) | 119 (64%) | 0.10 |
| Medications: | |||
| Aspirin | 599 (80%) | 145 (78%) | 0.54 |
| β Blocker | 428 (57%) | 112 (60%) | 0.45 |
| Angiotensin-converting enzyme inhibitor or angiotensin receptor blocker |
359 (48%) | 111 (60%) | 0.004 |
| Diuretic | 201 (27%) | 64 (34%) | 0.04 |
| Antiarrhythmic drug | 32 (4%) | 27 (15%) | <0.0001 |
| Statin | 482 (64%) | 118 (63%) | 0.82 |
| Current smoker | 158 (21%) | 30 (16%) | 0.12 |
| Regular alcohol use | 215 (29%) | 53 (29%) | 0.93 |
| Inducible ischemia present | 149 (22%) | 54 (33%) | 0.002 |
| Left ventricular mass index (ml/m2) | 94.5 ± 25 | 110.1 ± 27.3 | <0.0001 |
| Left ventricular diastolic dysfunction (pseudonormal or restrictive) |
33 (4%) | 24 (13%) | <0.0001 |
| LVEF | 62.7 ± 9.4 | 58.2 ± 10.2 | <0.0001 |