Table 4.
Characteristics of patients at ICU admission, according to 28-day survival
| Survivors (n=36) | Non survivors (n=25) | P | |
|---|---|---|---|
| Age (years) | 37 [24.5-47.5] | 43 [30-56.5] | 0.125 |
| Male (n, %) | 25 (69.40) | 18 (72) | 0.831 |
| Height (cm) | 171.42 (9.72) | 171.96 (9.55) | 0.830 |
| Ideal Weight (kg) | 65.86 (10.31) | 66.4 (9.5) | 0.836 |
| Actual weight (kg) | 74 [65-87.5] | 80 [70-90] | 0.397 |
| Body mass index (kg/m2) | 24.78 [22.79-27.43] | 26.35 [24.38-29.22] | 0.241 |
| BSA (m2) | 1.89 (0.20) | 1.96 (0.28) | 0.298 |
| BBA (%) | 23.82 (12.86) | 40 (18.67) | < 0.001 |
| BBSA (m2) | 0.46 (0.26) | 0.79 (0.37) | < 0.001 |
| 3rd degree burn (n, %) | 6 (16.7) | 8 (32) | 0.165 |
| Inhalation Injury (n, %) | 18 (50) | 11 (44) | 0.647 |
| Etiology (n, %) | 0.216 | ||
| Electric | 4 (11.1) | 2 (8) | |
| Chemical | 0 (0) | 2 (8) | |
| Thermal | 32 (88.9) | 21 (84) | |
| Etiological agent (n, %) | 0.282 | ||
| Alcohol | 16 (44.4) | 12 (48) | |
| High voltage | 2 (5.6) | 2 (8) | |
| Voltaic arc | 1 (2.8) | 0 (0) | |
| Flame | 3 (8.3) | 0 (0) | |
| Gas | 2 (5.6) | 1 (4) | |
| Gasoline | 5 (13.9) | 0 (0) | |
| Fire | 5 (13.9) | 5 (20) | |
| Hot liquids | 0 (0) | 1 (4) | |
| Tar | 0 (0) | 1 (4) | |
| Lightening | 1 (2.8) | 0 (0) | |
| Caustic soda | 0 (0) | 1 (4) | |
| Spray | 0 (0) | 1 (4) | |
| Thinner | 1 (2.8) | 0 (0) | |
| Vapor | 0 (0) | 1 (4) | |
| Motive (n, %) | 0.497 | ||
| Work accident | 6 (16.7) | 7 (28) | |
| Domestic accident | 21 (58.3) | 14 (56) | |
| Homicide | 5 (13.9) | 1 (4) | |
| Suicide | 4 (11.1) | 3 (12) | |
| Vasopressor at ICU admission (n, %) | 18 (50) | 19 (76) | 0.042 |
| PaO2/FiO2 at ICU admission (mmHg) | 282.11 (115.68) | 251.28 (102.45) | 0.288 |
| ABSI | 6 [5-7] | 8 [7-9] | < 0.001 |
| APACHE II | 17.08 (7.27) | 22.28 (10.31) | 0.024 |
| SOFA at ICU admission | 6.83 (3.05) | 8.4 (3.28) | 0.060 |
Legend: UTI - intensive care unit; ARDS - acute respiratory distress syndrome; BSA - body surface area; BBS - burned body surface; BBSA - burnt body surface area; FiO2 - inspired fraction of oxygen; ABSI - abbreviated burn severity index; APACHE - Acute Physiology and Chronic Health Evaluation; SOFA - sequential organ failure assessment. The values of continuous variables with non-normal distribution are expressed as median [interquartile range], analyzed using the Mann-Whitney test. The values of the continuous variables of normal distribution are expressed as mean (standard deviation), analyzed with the t test. Categorical variables are expressed in number and percentage, analyzed with the Chi-square test.