Relation between the integrated sSFR and the derived slopes and characteristic values at the effective radius for O/H (left panels) and N/O (right panels). The red and black solid lines in the upper and middle panels have the same meaning as in Fig. 12. In the middle panels, the dashed cyan line represents the running median assuming the observed relation between the SFR and stellar mass. In the lower panel, the residuals are indicated in red and running medians are indicated in cyan.