Table 1

 Summary statistics and correlations with blood volume of potential explanatory variables

VariableSample mean (SD)Sample correlation with blood volume (p value)
HR, Heart rate; c-pT, core-peripheral temperature difference; MAP, mean arterial pressure; BE, base excess; PCV, packed cell volume.
HR (beats/min)148 (15)0.39 (0.02)
c-pT (°C)1.28 (0.73)0.08 (0.66)
MAP (mm Hg)38.7 (7.5)−0.05 (0.80)
BE (mmol/l)−3.19 (4.10)0.41 (<0.01)
PCV0.496 (0.081)0.03 (0.87)