RISRAS (total scores between 0 and 36)* Researcher Component (total scores between 0 and 24) Erythema (E) 0 Normal skin 1 Dusky pink 2 Dull red 3 Brilliant red 4 Deep red-purple Dry Desquamation (DD) 0 Normal skin 1 (<25%)** 2 (25%-50%) 3 (50%-75%) 4 (>75%) Moist Desquamation (MD) 0 Normal skin 1.5 (<25%) 3.0 (25%-50%) 4.5 (50%-75%) 6 (>75%) Necrosis (N) 0 Normal skin 2.5 (<25%) 5.0 (25%-50%) 7.5 (50%-75%) 10 (>75%) Patient Component (total scores between 0 and 12) Symptoms Not at all A little Quite a bit Very much Do you have any tenderness, discomfort of pain of your skin in the treatment area? 0 1 2 3 Does your skin in the treatment area itch? 0 1 2 3 Do you have a burning sensation of your skin in the treatment area? 0 1 2 3 To what extent has your skin reactions and your symptoms affected your day to day activities? 0 1 2 3 * Individual scores for each item are added up to give a total score for the researcher and patient components of the scale. Adding the researcher and patient component scores together gives the total combined RISRAS score. ** Percentage of surface area of affected skin.

Table 1: Radiation-Induced Skin Assessment Scale (RISRAS).