An individual hazard ratio (HR) is now calculated for each independent variable : It expresses the change of the risk of a failure event when the independent variable grows by 1 unit. The result is adjusted to the remaining independent variables in the model – it is assumed that they remain stable while the studied independent variable grows by 1 unit.

The value is interpreted as follows: \item means the stimulating influence of the studied independent variable on the occurrence of the failure event, i.e. it gives information about how much greater the risk of the occurrence of the failure event is when the independent variable grows by 1 unit. \item means the destimulating influence of the studied independent variable on the occurrence of the failure event, i.e. it gives information about how much lower the risk is of the occurrence of the failure event when the independent variable grows by 1 unit. \item means that the studied independent variable has no influence on the occurrence of the failure event (1). Note

If the analysis is made for a model other than linear or if interaction is taken into account, then, just as in the logistic regression model we can calculate the appropriate on the basis of the general formula which is a combination of independent variables.