Table 1.
Patient characteristics by Body Mass Index classification
| Variable | Underweight (BMI <18.5) N = 650 | Normal (BMI 18.5 - 24.9) N = 5,653 | Overweight (BMI 25 - 29.9) N = 6,689 | Obese (BMI 30 - 39.9) N = 5,012 | Morbidly Obese (BMI ≥40) N = 742 |
|---|---|---|---|---|---|
| Age, mean (SD) | 69.0 (3.5) | 69.0 (12.3) | 68.5 (11.7) | 65.4 (11.3) | 59.8 (10.4) |
| Male | 626 (96.3) | 5,492 (97.2) | 6,549 (97.9) | 4,840 (96.6) | 703 (94.7) |
| Race | |||||
| White | 417 (64.7) | 3,693 (65.5) | 4,216 (63.2) | 3,354 (67.0) | 501 (67.7) |
| Black | 135 (20.9) | 1,190 (21.1) | 1,504 (22.6) | 1,130 (22.6) | 188 (25.4) |
| Hispanic | 86 (13.3) | 677 (12.0) | 807 (12.1) | 445 (8.9) | 43 (5.8) |
| Other / Unknown | 7 (1.1) | 75 (1.3) | 144 (2.2) | 78 (1.6) | 8 (1.1) |
| Married | 284 (43.7) | 2,824 (50.0) | 3,792 (56.7) | 2,858 (57.0) | 392 (52.8) |
| Medical Comorbidities | |||||
| Diabetes | 80 (12.3) | 1,470 (26.0) | 2,926 (43.7) | 3,160 (63.1) | 586 (79.0) |
| Diabetes with complications | 24 (3.7) | 600 (10.6) | 1,385 (20.7) | 1,725 (34.4) | 349 (47.0) |
| AIDS | 12 (1.9) | 117 (2.1) | 75 (1.1) | 45 (0.9) | 4 (0.5) |
| Cancer | 222 (34.2) | 2,066 (36.6) | 2,466 (36.9) | 1,620 (32.3) | 177 (23.9) |
| Stroke | 134 (20.6) | 1,721 (30.4) | 2,208 (33.0) | 1,568 (31.3) | 154 (20.8) |
| Congestive Heart Failure | 124 (19.1) | 1,633 (28.9) | 2,442 (36.5) | 2,358 (47.1) | 432 (58.2) |
| Cirrhosis | 16 (2.5) | 155 (2.7) | 210 (3.1) | 183 (3.7) | 20 (2.7) |
| Chronic Obstructive Pulmonary Disease | 513 (78.9) | 4,051 (71.7) | 4,570 (68.3) | 3,600 (71.8) | 575 (77.5) |
| Hepatic Failure | 3 (0.5) | 69 (1.2) | 100 (1.5) | 90 (1.8) | 7 (0.9) |
| HIV | 5 (0.8) | 68 (1.2) | 49 (0.7) | 24 (0.5) | 2 (0.3) |
| Leukemia | 13 (2.0) | 170 (3.0) | 259 (3.9) | 184 (3.7) | 16 (2.2) |
| Myocardial Infarction | 54 (8.3) | 641 (11.3) | 993 (14.9) | 711 (14.2) | 94 (12.7) |
| Perivascular Disease | 148 (22.8) | 1,531 (27.1) | 1,990 (29.8) | 1,477 (29.5) | 191 (25.7) |
| Hemiplegia/Paraplegia | 13 (2.0) | 156 (2.8) | 179 (2.7) | 119 (2.4) | 14 (1.9) |
| Peptic Ulcer Disease | 58 (8.9) | 496 (8.8) | 548 (8.2) | 352 (7.0) | 34 (4.6) |
| Renal Disease | 60 (9.2) | 958 (17.0) | 1,577 (23.6) | 1,377 (27.5) | 202 (27.2) |
| Rheumatologic Disease | 21 (3.2) | 263 (4.7) | 371 (5.6) | 257 (5.1) | 45 (6.1) |
| Cancer with metastasis | 36 (5.5) | 385 (6.8) | 463 (6.9) | 298 (6.0) | 23 (3.1) |
| Psychiatric comorbidities | |||||
| Alcohol use disorder | 70 (10.8) | 533 (9.4) | 409 (6.1) | 238 (4.8) | 19 (2.6) |
| Substance use disorder | 7 (1.1) | 137 (2.4) | 143 (2.1) | 116 (2.3) | 12 (1.6) |
| Tobacco dependence | 46 (7.1) | 368 (6.5) | 429 (6.4) | 339 (6.8) | 59 (8.0) |
| Post-traumatic stress disorder | 19 (2.9) | 157 (2.8) | 198 (3.0) | 220 (4.4) | 43 (5.8) |
| Dementia | 63 (9.7) | 517 (9.2) | 480 (7.2) | 199 (4.0) | 12 (1.6) |
| Psychotic disorders | 20 (3.1) | 260 (4.6) | 301 (4.5) | 250 (5.0) | 46 (6.2) |