Table 1.
Patient characteristics by presence of an ICD before propensity match
| Factor | Patients (n) | Non-ICD Group (n=9435) | ICD Group (n=1053) | P Value |
|---|---|---|---|---|
| Age (yr) | 10,488 | 72.0±11.7 | 69.6±11.5 | <0.001 |
| Men | 10,488 | 4770 (50.6) | 748 (71.0) | <0.001 |
| Black race | 10,488 | 1526 (16.2) | 173 (16.4) | 0.83 |
| BMI (kg/m2) | 10,182 | 29.2±6.6 | 28.9±5.9 | 0.21 |
| BMI group (kg/m2) | 10,488 | <0.001 | ||
| <18.5 | 129 (1.4) | 6 (0.57) | ||
| 18.5–24.9 | 2370 (25.1) | 282 (26.8) | ||
| 25–29.9 | 3263 (34.6) | 368 (34.9) | ||
| ≥30 | 3372 (35.7) | 392 (37.2) | ||
| Missing | 301 (3.2) | 5 (0.47) | ||
| eGFR (ml/min per 1.73 m2) | 10,488 | 44.6±12.0 | 43.5±11.3 | 0.004 |
| CKD stage, by eGFR (ml/min per 1.73 m2) | 10,488 | <0.001 | ||
| 45–59 | 5408 (57.3) | 532 (50.5) | ||
| 30–44 | 2751 (29.2) | 374 (35.5) | ||
| 15–29 | 1081 (11.5) | 141 (13.4) | ||
| <15 | 195 (2.1) | 6 (0.57) | ||
| Diabetes | 10,488 | 2136 (22.6) | 322 (30.6) | <0.001 |
| Hypertension | 10,488 | 8041 (85.2) | 802 (76.2) | <0.001 |
| Congestive heart failure | 10,488 | 1349 (14.3) | 698 (66.3) | <0.001 |
| Coronary artery disease | 10,488 | 2875 (30.5) | 602 (57.2) | <0.001 |
| Cerebrovascular disease | 10,488 | 1165 (12.3) | 124 (11.8) | 0.59 |
| Peripheral vascular disease | 10,488 | 322 (3.4) | 54 (5.1) | 0.01 |
| Coronary revascularization | 10,488 | 590 (6.3) | 181 (17.2) | <0.001 |
| Ventricular arrhythmia | 10,488 | 41 (0.43) | 72 (6.8) | <0.001 |
| Albumin (g/dl) | 8967 | 4.0±0.52 | 4.1±0.48 | 0.001 |
| Hemoglobin (g/dl) | 9595 | 12.4±1.9 | 12.6±1.9 | <0.001 |
| Malignancy | 10,488 | 2284 (24.2) | 145 (13.8) | <0.001 |
| LVEF (%) | 10,488 | 53.6±10.8 | 24.0±8.3 | <0.001 |
| Use of ACEIs/ARBs | 10,488 | 6600 (70.0) | 989 (93.9) | <0.001 |
| Use of statins | 10,488 | 5790 (61.4) | 840 (79.8) | <0.001 |
| Use of β-blockers | 10,488 | 6673 (70.7) | 996 (94.6) | <0.001 |
| Smoking status | 10,488 | 0.72 | ||
| No | 7670 (81.3) | 855 (81.2) | ||
| Yes | 591 (6.3) | 72 (6.8) | ||
| Missing | 1174 (12.4) | 126 (12.0) | ||
| Insurance group | 10,488 | 0.84 | ||
| Private | 1671 (17.7) | 182 (17.3) | ||
| Medicare/Medicaid | 7545 (80.0) | 844 (80.2) | ||
| Missing | 219 (2.3) | 27 (2.6) |
Data are given as n (%) or means±SD unless otherwise indicated. ICD, implantable cardioverter-defibrillator; BMI: body mass index; LVEF, left ventricular ejection fraction; ACEI/ARB, angiotensin-converting enzyme inhibitor/angiotensin receptor blocker.