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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2013 Apr 11;147(3):1002–1007. doi: 10.1016/j.jtcvs.2013.03.022

Table 4.

Selected predictors of nasopharyngeal temperature (°C) at electrocerebral inactivity (multivariable linear regression model, n=325, r2=0.04).

Variable Parameter estimate Standard error T Value P Value
Age (years) −0.01 0.01 −1.72 0.09
Male 0.38 0.28 1.33 0.19
White race −0.08 0.28 −0.28 0.78
Body surface area (m2) −0.003 0.46 −0.01 0.99
History of prior stroke −0.01 0.38 −0.02 0.98
Peripheral vascular disease 0.50 0.43 1.18 0.24
Baseline hemoglobin (g/dl) 0.01 0.07 0.21 0.83
NP temperature at start of cooling (°C) 0.05 0.07 0.73 0.47
PaCO2 during cooling (mm Hg) 0.04 0.02 1.74 0.08

NP = nasopharyngeal; PaCO2 = arterial carbon dioxide tension.