Table 1.
Patient characteristics
| Patient characteristic | AdaptivCRT (n = 1162) | Standard CRT (n = 652) | P value |
|---|---|---|---|
| Age (±SD), y | 67.0 ± 10.9 | 68.7 ± 11.7 | .0019 |
| Sex (Female), n (%) | 400 (34.4) | 188 (28.8) | .0147 |
| NYHA class, n (%) | |||
| I | 33 (2.8) | 27 (4.1) | .0560 |
| II | 452 (38.9) | 216 (33.1) | |
| III | 648 (55.8) | 394 (60.4) | |
| IV | 29 (2.5) | 15 (2.3) | |
| QRS, ms | 158.9 ± 21.2 | 160.6 ± 23.1 | .1168 |
| LVEF, % | 26.6 ± 7.8 | 27.1 ± 8.2 | .2110 |
| AV block, a n (%) | 244 (21.0) | 205 (31.4) | <.0001 |
| LBBB, n (%) | 901 (77.5) | 406 (62.3) | <.0001 |
| CAD, n (%) | 607 (52.2) | 345 (52.9) | .7819 |
| Hypertension, n (%) | 808 (69.5) | 468 (71.8) | .3154 |
| Renal dysfunction, b n (%) | 212 (18.2) | 101 (15.5) | .1364 |
| Diabetes, n (%) | 368 (31.7) | 220 (33.7) | .3654 |
Abbreviations: AV, atrioventricular; CAD, coronary artery disease; CRT, cardiac resynchronization therapy; LBBB, left bundle branch block; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association.
a
AV block includes 1st, 2nd, or 3rd degree AV block.
b
Renal dysfunction including with and without dialysis.