Frequency of the disc break type and the interaction signatures of our sample of galaxies. Left: normalised distribution of the frequency of the types of breaks found in this work (left, blue) and in Pranger et al. (2017) for their field (middle, green) and cluster (right, red) samples. Right: normalised distribution of the frequency of the types of breaks. Galaxies that are strongly contaminated by cirrus are excluded from this figure. We also show the contribution of unperturbed (blue) and perturbed (green) galaxies for each type of break.