Table 2.
Patient characteristics
| Variable | Normal weight (BMI < 25 kg/m2) |
Morbidly obese (BMI ≥ 40 kg/m2) |
Super obese (BMI ≥ 50 kg/m2) |
|---|---|---|---|
| Sex | |||
| Male | 144,607 (38%) | 3194 (32%) | 188 (23%) |
| Female | 232,075 (62%) | 6713 (68%) | 617 (77%) |
| Age group | |||
| 65–69 | 104,155 (28%) | 5082 (51%) | 450 (56%) |
| 70–74 | 96,484 (26%) | 2937 (30%) | 249 (31%) |
| 75–79 | 80,706 (21%) | 1343 (14%) | 79 (10%) |
| 80–84 | 59,246 (16%) | 451 (5%) | 21 (3%) |
| 85+ | 36,091 (10%) | 94 (1%) | 6 (1%) |
| Race | |||
| White | 352,239 (94%) | 8884 (90%) | 709 (88%) |
| Black | 15,941 (4%) | 831 (8%) | 84 (10%) |
| Other | 8502 (2%) | 192 (2%) | 12 (1%) |
| Region | |||
| Midwest | 97,124 (26%) | 3464 (35%) | 316 (39%) |
| Northeast | 71,679 (19%) | 1989 (20%) | 158 (20%) |
| South | 134,348 (36%) | 3018 (30%) | 247 (31%) |
| West | 73,531 (20%) | 1436 (14%) | 84 (10%) |
| Charlson index | |||
| 0 | 215,553 (57%) | 3871 (39%) | 271 (34%) |
| 1–2 | 128,592 (34%) | 4670 (47%) | 427 (53%) |
| 3–4 | 25,777 (7%) | 1131 (11%) | 89 (11%) |
| 5+ | 6760 (2%) | 235 (2%) | 18 (2%) |
| Discharge | |||
| Home | 199,764 (54%) | 4144 (42%) | 259 (33%) |
| Skilled nursing | 125,382 (33%) | 4104 (41%) | 355 (44%) |
| Rehabilitation facility | 39,435 (10%) | 1353 (14%) | 164 (20%) |
| Other facility | 12,101 (3%) | 306 (3%) | 27 (3%) |
| Total | 376,682 | 9907 | 805 |
| Age (years) | 74.7 ± 6.8 | 70.4 ± 4.8 | 69.8 ± 4.3 |
| Length of stay (days) | 3.3 ± 2.1 | 3.5 ± 2.4 | 3.7 ± 2.2 |
| Hospital charge | USD 61,345 ± 36,925 | USD 62,213 ± 45,300 | USD 63,829 ± 35,844 |
| CMS payment | USD 13,359 ± 6134 | USD 13,469 ± 6589 | USD 13,571 ± 5832 |
CMS = Centers for Medicare & Medicaid Services.