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Table 2 Results from univariate and multivariate logistic regression analysis in regard to mortality for LPRx, PRx, ΔLPRx-CPPopt, and ΔPRx-CPPopt

From: Low-resolution pressure reactivity index and its derived optimal cerebral perfusion pressure in adult traumatic brain injury: a CENTER-TBI study

AParameterIndex: LPRxIndex: PRx
Coefficientp valueCoefficientp value
 UnivariateIndex3.484< 0.0014.244< 0.001
 MultivariateAge0.0390.0010.0360.003
GCS-Motor− 0.1910.068− 0.2020.059
Pupillary response0.3040.1970.3330.173
Index2.6340.0113.868< 0.001
BParameterΔCPPopt: LPRxΔCPPopt: PRx
Coefficientp valueCoefficientp value
 UnivariateΔCPPopt− 0.1220.003− 0.148< 0.001
 MultivariateAge0.049< 0.0010.050< 0.001
GCS-Motor− 0.1960.059− 0.2270.034
Pupillary response0.3080.1980.2570.296
ΔCPPopt− 0.1390.003− 0.159< 0.001
CParameterIndex: LPRxIndex: PRx
Coefficientp valueCoefficientp value
 UnivariateIndex3.484< 0.0014.244< 0.001
 MultivariateAge0.043< 0.0010.0390.002
GCS-Motor− 0.1640.130− 0.1690.127
Pupillary response0.4570.0670.4740.068
ICP0.0710.0050.0610.019
CPP0.0340.1280.0350.128
Index1.6280.1523.1400.007
DParameterΔCPPopt: LPRxΔCPPopt: PRx
Coefficientp valueCoefficientp value
 UnivariateΔCPPopt− 0.1220.003− 0.148< 0.001
 MultivariateAge0.050< 0.0010.051< 0.001
GCS-Motor− 0.1660.124− 0.1900.086
Pupillary response0.4660.0670.4230.106
ICP0.0670.0090.0650.011
CPP0.0420.0660.0460.048
Index− 0.1080.065− 0.1460.002
  1. ΔCPPopt difference between cerebral perfusion pressure and calculated optimal cerebral perfusion pressure, GCS-Motor Glasgow Coma Scale motor component, LPRx long pressure reactivity index, PRx pressure reactivity index