Table 1.
Baseline characteristics of patients included in the primary analyses (12-month preablation vs 12-month postablation comparison)
| Paroxysmal (n = 2794) | Persistent (n = 1909) | P value | |
|---|---|---|---|
| Age, mean (SD) | 67.4 (9.9) | 68.8 (9.0) | <.0001 |
| Age group | <.0001 | ||
| 19–49 | 153 (5.5) | 59 (3.1) | |
| 50–59 | 419 (15.0) | 242 (12.7) | |
| 60–69 | 837 (30.0) | 616 (32.3) | |
| 70+ | 1385 (49.6) | 992 (52.0) | |
| Sex | <.0001 | ||
| Female | 1233 (44.1) | 692 (36.3) | |
| Male | 1561 (55.9) | 1217 (63.8) | |
| Region | .8416 | ||
| Midwest | 715 (25.6) | 512 (26.8) | |
| Northeast | 368 (13.2) | 250 (13.1) | |
| South | 1299 (46.5) | 884 (46.3) | |
| West | 409 (14.6) | 261 (13.7) | |
| Unknown | 3 (0.1) | 2 (0.1) | |
| Insurance type | .0087 | ||
| EPO/HMO | 296 (10.6) | 209 (11.0) | |
| Indemnity | 20 (0.7) | 21 (1.1) | |
| POS/PPO | 897 (32.1) | 530 (27.8) | |
| Other | 1581 (56.6) | 1149 (60.2) | |
| Hospital bed size | .0011 | ||
| Large (≥250) | 1722 (61.6) | 1174 (61.5) | |
| Medium (101–249) | 406 (14.5) | 213 (11.2) | |
| Small (<100) | 45 (1.6) | 29 (1.5) | |
| Unknown | 621 (22.2) | 493 (25.8) | |
| Admission year | .1304 | ||
| 2016 | 296 (10.6) | 169 (8.9) | |
| 2017 | 1505 (53.9) | 1036 (54.3) | |
| 2018 | 993 (35.5) | 704 (36.9) | |
| CCI score | <.0001 | ||
| 0 | 807 (28.9) | 367 (19.2) | |
| 1–2 | 1158 (41.5) | 814 (42.6) | |
| ≥3 | 829 (29.7) | 728 (38.1) | |
| CHA2DS2-VASc score | <.0001 | ||
| 0 | 150 (5.4) | 53 (2.8) | |
| 1–2 | 892 (31.9) | 497 (26.0) | |
| ≥3 | 1752 (62.7) | 1359 (71.2) | |
| ICD/CRT-D use | 198 (7.1) | 193 (10.1) | .0002 |
| Sleep apnea | 964 (34.5) | 778 (40.8) | <.0001 |
| Obesity | 773 (27.7) | 708 (37.1) | <.0001 |
| Diabetes | 676 (24.2) | 552 (28.9) | .0003 |
| Hypertension | 2223 (79.6) | 1641 (86.0) | <.0001 |
| Chronic pulmonary disease | 640 (22.9) | 499 (26.1) | .0110 |
| Renal disease | 367 (13.1) | 338 (17.7) | <.0001 |
| Other arrhythmia | 2006 (73.94) | 1333 (69.83) | .002 |
| Valvular disease | 1123 (40.2) | 943 (49.4) | <.0001 |
| Cardiomyopathy | 368 (13.2) | 494 (25.9) | <.0001 |
| Myocardial infarction | 232 (8.3) | 191 (10.0) | .0452 |
| Heart failure | 710 (25.4) | 838 (43.9) | <.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.