Table 1.
Clinical Characteristics
| Variable | Intervention Group (N = 115) |
Control Group (N=123) |
P Value |
|---|---|---|---|
| Age (mean ± SD, years) | 61 ± 12 | 61 ± 12 | 0.88 |
| #/N (%) | #/N (%) | ||
| Males | 88/115 (77%) | 96/123 (78%) | 0.88 |
| Race | |||
| White | 88/115 (77%) | 93/123 (76%) | |
| Black or African American | 3/115 (3%) | 8/123 (7%) | |
| Asian | 1/115 (1%) | 5/123 (4%) | |
| Unknown or Not Reported | 23/115 (20%) | 17/123 (14%) | |
| Ethnicity | |||
| Hispanic or Latino | 10/115 (9%) | 17/123 (14%) | |
| Not Hispanic or Latino | 61/115 (53%) | 67/123 (54%) | |
| Unknown or Not Reported | 42/115 (37%) | 44/123 (36%) | |
| Language | |||
| English | 114/115 (53%) | 120/123 (98%) | 0.62 |
| Spanish | 1/115 (37%) | 3/123 (2%) | |
| Procedure at Enrollment | |||
| DCCV | 55/115 (48%) | 80/123 (65%) | 0.009 |
| RFA | 60/115 (52%) | 43/123 (35%) | |
| Type of Atrial Fibrillation | |||
| Paroxysmal | 74/109 (68%) | 74/121 (61%) | 0.34 |
| Persistent | 35/109 (32%) | 47/121 (39%) | |
| Comorbidities | |||
| Hx of Stroke/TIA | 11/115 (10%) | 10/123 (8%) | 0.82 |
| Hx of Congestive Heart Failure | 22/115 (19%) | 26/123 (26%) | 0.75 |
| Cardiovascular Risk Factors | |||
| Diabetes | 14/115 (12%) | 17/123 (14%) | 0.85 |
| Hypertension | 66/115 (57%) | 77/123 (63%) | 0.43 |
| Obesity | 38/103 (37%) | 47/107 (44%) | 0.33 |
| Hx of Smoking (Current) | 5/115 (4%) | 4/123 (3%) | 0.74 |
| Hx of Smoking (Past) | 38/115 (33%) | 39/123 (32%) | 0.89 |
| Sleep Apnea | 27/115 (23%) | 27/123 (22%) | 0.88 |
| PR Interval >200 | 17/81 (21%) | 25/89 (28%) | 0.29 |
| Medications | |||
| Anticoagulants | 105/115 (87%) | 112/123 (91%) | 1.0 |
| Beta Blockers | 74/115 (64%) | 93/123 (76%) | 0.07 |
| Antiarrhythmics | 34/115 (30%) | 32/123 (26%) | 0.56 |
| Diuretics | 18/115 (16%) | 25/123 (20%) | 0.40 |
| Calcium Channel Blockers | 22/115 (19%) | 21/123 (17%) | 0.74 |
| ACE/ARB | 34/115 (30%) | 37/123 (30%) | 1.0 |
| Digoxin | 8/115 (7%) | 13/123 (11%) | 0.37 |
| LVEF | |||
| Normal | 62/95 (65%) | 57/94 (61%) | 0.55 |
| Decreased | 33/95 (35%) | 37/94 (39%) | |
| LA Diameter | |||
| Normal | 26/56 (46%) | 27/66 (41%) | 0.59 |
| Enlarged | 30/56 (54%) | 39/66 (59%) |