Table 2.
Baseline characteristics of patients included in the secondary analyses (6-month preablation vs 18-month postablation comparison)
| Paroxysmal (n = 2608) | Persistent (n = 1754) | P value | |
|---|---|---|---|
| Age, mean (SD) | 66.8 (10.0) | 68.3 (9.1) | <.0001 |
| Age group | <.0001 | ||
| 19–49 | 161 (6.2) | 57 (3.3) | |
| 50–59 | 421 (16.1) | 233 (13.3) | |
| 60–69 | 829 (31.8) | 587 (33.5) | |
| 70+ | 1197 (45.9) | 877 (50.0) | |
| Sex | <.0001 | ||
| Female | 1138 (43.6) | 643 (36.7) | |
| Male | 1470 (56.4) | 1111 (63.3) | |
| Region | <.0001 | ||
| Midwest | 39 (1.5) | 51 (2.9) | |
| Northeast | 60 (2.3) | 53 (3.0) | |
| South | 105 (4.0) | 114 (6.5) | |
| West | 36 (1.4) | 31 (1.8) | |
| Unknown | 2368 (90.8) | 1505 (85.8) | |
| Insurance type | .0045 | ||
| EPO/HMO | 271 (10.4) | 191 (10.9) | |
| Indemnity | 21 (0.8) | 28 (1.6) | |
| POS/PPO | 846 (32.4) | 498 (28.4) | |
| Other | 1470 (56.4) | 1037 (59.1) | |
| Hospital bed size | .0003 | ||
| Large (≥250) | 143 (5.5) | 147 (8.4) | |
| Medium (101–249) | 25 (1.0) | 10 (0.6) | |
| Small (<100) | 5 (0.2) | 8 (0.5) | |
| Unknown | 2435 (93.4) | 1589 (90.6) | |
| Admission year | .3987 | ||
| 2016 | 962 (36.9) | 625 (35.6) | |
| 2017 | 1646 (63.1) | 1129 (64.4) | |
| 2018 | 0 | 0 | |
| CCI score | <.0001 | ||
| 0 | 934 (35.8) | 441 (25.1) | |
| 1–2 | 1073 (41.1) | 818 (46.6) | |
| ≥3 | 601 (23.0) | 495 (28.2) | |
| CHA2DS2-VASc score | <.0001 | ||
| 0 | 177 (6.8) | 68 (3.9) | |
| 1–2 | 934 (35.8) | 545 (31.1) | |
| ≥3 | 1497 (57.4) | 1141 (65.1) | |
| ICD/CRT-D use | 139 (5.3) | 131 (7.5) | .004 |
| Sleep apnea | 780 (29.9) | 627 (35.8) | <.0001 |
| Obesity | 569 (21.8) | 514 (29.3) | <.0001 |
| Diabetes | 580 (22.2) | 466 (26.6) | .001 |
| Hypertension | 1934 (74.2) | 1435 (81.8) | <.0001 |
| Chronic pulmonary disease | 495 (19.0) | 378 (21.6) | .0375 |
| Renal disease | 283 (10.9) | 244 (13.9) | .0024 |
| Other arrhythmia | 1445 (55.41) | 829 (47.26) | <.0001 |
| Valvular disease | 858 (32.9) | 775 (44.2) | <.0001 |
| Cardiomyopathy | 286 (11.0) | 396 (22.6) | <.0001 |
| Myocardial infarction | 165 (6.3) | 134 (7.6) | .0924 |
| Heart failure | 551 (21.1) | 669 (38.1) | <.0001 |
CCI = Charlson Comorbidity Index; CRT-D = cardiac resynchronization therapy with defibrillator; EPO = Exclusive Provider Organization; HMO = Health Maintenance Organization; ICD = implantable cardioverter-defibrillator; POS = Point of Service; PPO = Preferred Provider Organization.
Data are n (%) unless specified.