Table 1.
Comparison of study groups on admission
| Higher calorie (N = 28) | Lower calorie (N = 28) | p valuea | |
|---|---|---|---|
| Calories: | |||
| Admit calorie prescription (Kcal) | 1,764 (60) | 1,093 (28) | .000 |
| Estimated energy needs (Kcal) | 2,864 (44) | 2,793 (60) | .338 |
| Weight: | |||
| Admit BMI (kg/m2) | 16.6 (.4) | 15.8 (.5) | .188 |
| Admit %MBMIb | 81.9 (1.8) | 77.6 (2.3) | .150 |
| Age (years): | 16.1 (.4) | 16.2 (.4) | .875 |
| Vital signs: | |||
| Lowest heart rate (beats/min) | 43.0 (2.0) | 43.9 (1.7) | .880 |
| Lowest Temperature (°C) | 35.8 (.1) | 35.8 (.1) | .935 |
| Hydration status: | |||
| Serum BUN (mg/dL) | 15.3 (1.6) | 12.8 (15.3) | .241 |
| Cr (mg/dL) | .82 (.04) | .84 (.04) | .761 |
| Cr/BUN ratio | 15.7 (1.4) | 18.9 (2.3) | .239 |
| Serum sodium (mmol/L) | 139.7 (.4) | 139.9 (.5) | .769 |
| Urine-specific gravity | 1.010 (.000) | 1.011 (.002) | .806 |
Data are presented as mean (SEM).
BMI = body mass index; BUN = blood urea nitrogen; Cr = creatinine; %MBMI = percent median BMI.
a
p values from unpaired t-tests.
b
%MBMI calculated using 50th percentile BMI for age and gender [19].