Table 3.
Univariable analysis of effect of patient, injury, and treatment characteristics on resting energy expenditure (in steps of + 100 kcal)
| Coefficient | 95% CI | p value | |
|---|---|---|---|
| Patient characteristics | |||
| Age | -0.08 | -0.15 to -0.01 | 0.035 |
| Age < 65 years | 6.33 | 3.70 to 8.97 | 0.006 |
| Male sex | 5.92 | 3.46 to 8.39 | < 0.001 |
| BMI [kg/m2] | 0.18 | -0.01 to 0.37 | 0.057 |
| BMI ≥ 35 kg/m2 | 3.68 | 0.91 to 6.45 | 0.009 |
| Heart failure | -2.77 | -5.90 to 0.37 | 0.084 |
| Diabetes mellitus | -1.86 | -5.58 to 1.86 | 0.300 |
| Pulmonary disease | 0.64 | -3.10 to 4.38 | 0.700 |
| Chronic kidney disease | -2.06 | -6.66 to 2.54 | 0.400 |
| Chronic liver disease | 0.88 | -2.47 to 4.24 | 0.606 |
| APACHE at admission | -0.10 | -0.30 to 0.10 | 0.339 |
| Injury characteristics | |||
| Injury severity score | 0.03 | -0.08 to 0.14 | 0.600 |
| Severe head trauma (AIS ≥ 3) | -3.50 | -6.65 to -0.42 | 0.027 |
| Severe face trauma (AIS ≥ 3) | -1.50 | -4.71 to 1.72 | 0.400 |
| Severe chest trauma (AIS ≥ 3) | 2.80 | -0.03 to 5.67 | 0.054 |
| Severe abdominal trauma (AIS ≥ 3) | 1.40 | -1.54 to 4.27 | 0.400 |
| Severe pelvic and extremity trauma (AIS ≥ 3) | 0.19 | -2.91 to 3.30 | > 0.900 |
| Severe external trauma (AIS ≥ 3) | -21.00 | -22.77 to -19.15 | < 0.001 |
| Treatment characteristics | |||
| PRBC transfusion [250 mL units] | 0.21 | 0.01 to 0.41 | 0.039 |
| Plasma transfusion [280 mL units] | -0.06 | -0.19 to 0.06 | 0.300 |
| Platelet transfusion [250 mL units] | -0.20 | -0.49 to 0.10 | 0.200 |
| Laparoscopy | 7.20 | 1.66 to 12.79 | 0.012 |
| Laparotomy | 2.70 | -1.22 to 6.66 | 0.200 |
| Thoracotomy | 0.10 | -3.31 to 3.52 | > 0.900 |
| Neurosurgery | 0.47 | -2.74 to 3.67 | 0.800 |
| Orthopedic surgery | -0.12 | -2.77 to 2.53 | > 0.900 |
Univariable population based (patient clustered) linear regression analysis
CI confidence interval, BMI Body Mass Index, APACHE Acute Physiology and Chronic Health Evaluation score, AIS Abbreviated Injury Scale, PRBC packed red blood cells