Brass relational method is traditionally used as an alternative to model mortality tables which are used for two main reasons - for estimation of mortality for populations where data are not available, and for estimation of future development of mortality. For the second mentioned reason this method is useful because it can lead to forecasts based on two parameters only.
These parameters could be extrapolated by a linear function. In the presentation, there the method was applied to Czech data and through the linear extrapolation of parameters the estimations of future mortality development was calculated.
It was proved that for the estimation of adult people (aged 35 to 70) the method has very good results. For prognosing of mortality at higher ages this method could be used as additional together with traditional methods of forecasting.