Table 1.
Patient Characteristics, Comorbid Conditions, and QRS Categorization
| Characteristic | N* (%) | Condition | N* (%) |
|---|---|---|---|
| Total | 997 (100) | HTN | 798 (80) |
| Male | 987 (98.9) | CAD | 510 (51.2) |
| Female | 10 (1.0) | AMI | 117 (11.7) |
| Race | CHF | 243 (24.4) | |
| White | 808 (81.0) | HLP | 539 (54.1) |
| Black | 118 (11.8) | COPD | 331 (33.2) |
| Other | 71 (7.1) | Cancer | 163 (16.3) |
| Alive | 653 (65.5) | AV block | |
| Died | 344 (34.5) | 1st deg | 215 (21.6) |
| Cardiac | 59 (5.9) | 2nd or 3rd | 6 (0.6) |
| Noncardiac | 191 (19.2) | Fascicular block | |
| Unknown | 94 (9.4) | Anterior | 369 (37.0) |
| Posterior | 19 (1.9) | ||
| QRS Duration(ms) | Mean (± SD in ms) | ||
| 120–129 | 118 (11.8) | 124.8 (±2.9) | |
| 130–139 | 219 (22.0) | 134.8 (±2.6) | |
| 140–149 | 295 (30.0) | 144.5 (±2.9) | |
| ≥150 | 365 (36.6) | 160.8 (±10.8) | |
*Total number, AMI = acute myocardial infarction; AV block = atrioventricular block; CAD = coronary artery disease; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease; HLP = hyperlipidemia; HTN = hypertension.