Table 2.
Baseline Characteristics After 1:3 Matching
| Demographics | With Diabetes Mellitus | Without Diabetes Mellitus | ||||
|---|---|---|---|---|---|---|
| Overall (N=2518) | ICD (N=644) | No ICD (N=1874) | Overall (N=3929) | ICD (N=1025) | No ICD (N=2904) | |
| Median age, y | 74.0 | 74.0 | 73.0 | 76.0 | 76.0 | 76.0 |
| Male, n (%) | 1660 (65.9) | 427 (66.3) | 1233 (65.8) | 2620 (66.7) | 698 (68.1) | 1922 (66.2) |
| Race, n (%) | ||||||
| Asian | 128 (5.1) | 29 (4.5) | 99 (5.3) | 173 (4.4) | 49 (4.8) | 124 (4.3) |
| Hispanic (any race) | 184 (7.3) | 47 (7.3) | 137 (7.3) | 173 (4.4) | 38 (3.7) | 135 (4.6) |
| Black | 415 (16.5) | 104 (16.1) | 311 (16.6) | 441 (11.2) | 109 (10.6) | 332 (11.4) |
| White | 1744 (69.3) | 457 (71.0) | 1287 (68.7) | 3076 (78.3) | 818 (79.8) | 2258 (77.8) |
| Missing | 47 (1.9) | 7 (1.1) | 40 (2.1) | 66 (1.7) | 11 (1.1) | 55 (1.9) |
| Median ejection fraction (%) | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 |
| Baseline medical history, n (%) | ||||||
| Anemia | 299 (11.9) | 76 (11.8) | 223 (11.9) | 338 (8.6) | 90 (8.8) | 248 (8.5) |
| Coronary disease | 1668 (66.2) | 436 (67.7) | 1232 (65.7) | 2250 (57.3) | 579 (56.6) | 1671 (57.5) |
| COPD or asthma | 656 (26.1) | 167 (25.9) | 489 (26.1) | 927 (23.6) | 241 (23.5) | 686 (23.6) |
| CVA/TIA | 354 (14.1) | 96 (14.9) | 258 (13.8) | 498 (12.7) | 125 (12.2) | 373 (12.8) |
| Depression | 226 (9.0) | 45 (7.0) | 181 (9.7) | 261 (6.6) | 60 (5.9_ | 201 (6.9) |
| Previous MI | 683 (27.1) | 185 (28.7) | 498 (26.6) | 920 (23.4) | 287 (28.0) | 633 (21.8) |
| Peripheral vascular disease | 389 (15.4) | 88 (13.7) | 301 (16.1) | 373 (9.5) | 83 (8.1) | 290 (10.0) |
| Previous heart failure | 1527 (60.6) | 394 (61.2) | 1133 (60.5) | 2312 (58.8) | 610 (59.5) | 1702 (58.6) |
| Hyperlipidemia | 1432 (56.9)_ | 392 (61.2) | 1038 (55.4) | 1736 (44.2) | 489 (47.7) | 1247 (42.9) |
| Hypertension | 2028 (80.5) | 516 (80.1) | 1512 (80.7) | 2676 (68.1) | 695 (67.8) | 1981 (68.2) |
| Renal insufficiency (SCr >2 mg/dL) | 479 (19.0) | 120 (18.6) | 359 (19.2) | 565 (14.4) | 144 (14.0) | 421 (14.5) |
| Patient laboratory values at admission | ||||||
| Median sodium, mEq/L | 138.0 | 138.0 | 138.0 | 139.0 | 139.0 | 139.0 |
| Median BUN, mg/dL | 26.0 | 25.0 | 26.0 | 23.0 | 23.0 | 22.5 |
| Median serum creatinine, mg/dL | 1.4 | 1.3 | 1.4 | 1.3 | 1.3 | 1.2 |
| Median BNP, pg/mL | 1073.0 | 967.5 | 1093.9 | 1200.0 | 1113.0 | 1230.0 |
| Median hemoglobin, g/dL | 12.2 | 12.5 | 12.0 | 12.7 | 12.9 | 12.6 |
| Medications at discharge, n (%) | ||||||
| ACE inhibitors | 1549 (61.5) | 392 (61.2) | 115 (61.6) | 2421 (61.6) | 600 (58.5) | 1821 (62.7) |
| ASA | 1448 (57.5) | 375 (58.2) | 1073 (57.3) | 2184 (55.6) | 582 (56.8) | 1602 (55.2) |
| ARB | 470 (18.7) | 131 (20.3) | 339 (18.1) | 580 (14.8) | 189 (18.4) | 391 (13.5) |
| β‐Blocker | 2305 (91.5) | 585 (90.8) | 1720 (91.8) | 3515 (89.5) | 919 (89.7) | 2596 (89.4) |
| Aldosterone antagonist | 596 (23.7) | 172 (26.7) | 424 (22.6) | 915 (23.3) | 261 (25.5) | 654 (22.5) |
| Hospital characteristics, n (%) | ||||||
| Hospital type (teaching) | 1736 (68.9) | 453 (70.3) | 1283 (68.5) | 2782 (70.8) | 736 (71.8) | 2046 (70.5) |
ACE indicates angiotensin‐converting enzyme; ARB, angiotensin receptor blockers; ASA, acetylsalicylic acid; BNP, brain natriuretic peptide; BUN, blood urea nitrogen; COPD, chronic obstructive pulmonary disorder; CVA, cerebrovascular accident; ICD, implantable cardioverter‐defibrillator; MI, myocardial infarction; TIA, transient ischemic attack; SCr, serum creatinine.