Results of the full and stepwise multiple regressions of ID50 with the other variables.

Variables are ordered by cumulative explanatory power in the stepwise regression from highest (top) to lowest (bottom). Both the R2 of the individual regressions (individual R2) and the cumulative effect of the variables on the stepwise regression (cumulative R2) are provided. For the latter, the statistical tests for the relevance of the inclusion of each variable in the stepwise regression are also given (F-test and Akaike's criterion). Statistical thresholds: ++ (p+ (p0.05).*minimum by the AIC criterion.