Table 1.
Patient demographics and burn characteristics
| Characteristic | Rockwood Frailty Score | |||||
|---|---|---|---|---|---|---|
| 1–3 | 4–6 | 7–9 | ||||
| 262 (40%) | 345 (54%) | 37 (6%) | ||||
| Age, median (IQR) | 70.0 | (67, 75) | 71.0 | (68, 77) | 74.0 | (70, 79) |
| Age category, n (%) | 116 | (44.3) | 124 | (35.9) | 7 | (18.9) |
| 65–69 | 74 | (28.2) | 100 | (29.0) | 13 | (35.1) |
| 70–74 | 45 | (17.2) | 57 | (16.5) | 8 | (21.6) |
| 75–79 | 17 | (6.5) | 32 | (9.3) | 4 | (10.8) |
| 80–84 | 9 | (3.4) | 15 | (4.3) | 4 | (10.8) |
| 80–89 | 1 | (0.4) | 17 | (4.9) | 1 | (2.7) |
| Gender, n (%) | ||||||
| Male | 197 | (75.2) | 191 | (55.4) | 23 | (62.2) |
| Female | 65 | (24.8) | 154 | (44.6) | 14 | (37.8) |
| Race, n (%) | ||||||
| White | 175 | (67.6) | 210 | (61.8) | 30 | (81.1) |
| Black | 69 | (26.6) | 118 | (34.7) | 4 | (10.8) |
| Other | 15 | (5.8) | 12 | (3.5) | 3 | (8.1) |
| Living in SNF, n (%) | 0 | (0.0) | 10 | (2.9) | 5 | (13.5) |
| BMI, median (IQR) | 27.9 | (24, 32) | 27.4 | (23, 32) | 25.3 | (21, 30) |
| Admission year, n (%) | ||||||
| 2015 | 50 | (19.1) | 63 | (18.3) | 9 | (24.3) |
| 2016 | 53 | (20.2) | 54 | (15.7) | 7 | (18.9) |
| 2017 | 56 | (21.4) | 74 | (21.4) | 6 | (16.2) |
| 2018 | 42 | (16.0) | 97 | (28.1) | 6 | (16.2) |
| 2019 | 61 | (23.3) | 57 | (16.5) | 9 | (24.3) |
| Burn etiology, n (%) | ||||||
| Fire | 157 | (59.9) | 198 | (57.4) | 22 | (59.5) |
| Scald | 72 | (27.5) | 102 | (29.6) | 7 | (18.9) |
| Contact | 19 | (7.3) | 34 | (9.9) | 6 | (16.2) |
| Chemical | 7 | (2.7) | 5 | (1.4) | 1 | (2.7) |
| Electrical | 4 | (1.5) | 2 | (0.6) | 0 | (0.0) |
| Other | 3 | (1.1) | 4 | (1.2) | 1 | (2.7) |
| TBSA, median (IQR) | 2.0 | (1, 5) | 3.0 | (1, 7) | 3.0 | (2, 8) |
| TBSA category, n (%) | ||||||
| <5% | 193 | (73.7) | 233 | (67.5) | 22 | (59.5) |
| 5 to <10% | 42 | (16.0) | 54 | (15.7) | 9 | (24.3) |
| 10 to <20% | 19 | (7.3) | 35 | (10.1) | 4 | (10.8) |
| ≥20% | 8 | (3.1) | 23 | (6.7) | 2 | (5.4) |
| Burn degree, n (%) | ||||||
| First degree | 2 | (0.8) | 0 | (0.0) | 0 | (0.0) |
| Second degree | 167 | (67.9) | 204 | (61.6) | 13 | (39.4) |
| Third degree | 77 | (31.3) | 127 | (38.4) | 20 | (60.6) |
| Missing | 16 | 14 | 4 | |||
| Inhalation injury, n (%) | 9 | (3.4) | 19 | (5.5) | 5 | (13.5) |
| Revised Baux score, median (IQR) | 74.1 | (70, 80) | 77.0 | (71, 87) | 83.5 | (76, 86) |
| Location on admission, n (%) | ||||||
| ICU | 55 | (21.1) | 128 | (37.1) | 25 | (67.6) |
| Stepdown | 68 | (26.1) | 104 | (30.1) | 8 | (21.6) |
| Floor | 138 | (52.9) | 113 | (32.8) | 4 | (10.8) |
| Insurance type, n (%) | ||||||
| Medicare | 223 | (85.1) | 312 | (90.4) | 29 | (78.4) |
| Private | 21 | (8.0) | 19 | (5.5) | 6 | (16.2) |
| Military/campus | 7 | (2.7) | 2 | (0.6) | 2 | (5.4) |
| Medicaid | 1 | (0.4) | 3 | (0.9) | 0 | (0.0) |
| Self-pay | 4 | (1.5) | 5 | (1.4) | 0 | (0.0) |
| Other | 6 | (2.3) | 4 | (1.2) | 0 | (0.0) |
| Smoker, n (%) | 46 | (17.6) | 106 | (30.7) | 11 | (29.7) |
| Comorbidities, n (%) | ||||||
| Asthma | 7 | (2.7) | 9 | (2.6) | 4 | (10.8) |
| Cancer | 5 | (1.9) | 19 | (5.5) | 3 | (8.1) |
| CAD/MI | 37 | (14.1) | 66 | (19.1) | 3 | (8.1) |
| COPD | 27 | (10.3) | 102 | (29.6) | 17 | (45.9) |
| CHF | 9 | (3.4) | 34 | (9.9) | 3 | (8.1) |
| CVA | 10 | (3.8) | 41 | (11.9) | 8 | (21.6) |
| Diabetes | 75 | (28.6) | 114 | (33.0) | 15 | (40.5) |
| Renal disease | 3 | (1.1) | 14 | (4.1) | 2 | (5.4) |
BMI, body mass index; CAD/MI, coronary artery disease/myocardial infarction; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; ICU, intensive care unit; IQR, interquartile range; SNF, skilled nursing facility.