Comparison of the distributions of the CIGALE-derived dust-to-stellar mass ratio (top panel) and sSFR (bottom panel) for the different sub-classes of late-type galaxies. The normalised distributions for the SF Sa-Scd, the Q Sa-Scd galaxies, and the SF Sd-Irr are shown in blue, red, and yellow, respectively. The median value of each parameter, for each population is given in the plot with the corresponding colour. The vertical dash-dotted line indicates the sSFR = 10⁻¹¹ yr⁻¹ threshold.