However , as secondary endpoints of this study , the incidence of Grade 2 dermatitis was lower in Group A than B ( 62.6 vs. 94.4 % ; P < 0.05 ) , and the duration of Grade 1 dermatitis was shorter in Group A than B ( 44.8 vs. 56.7 % ; P < 0.01 ) , as was the duration of Grade 2 dermatitis ( 16.5 vs. 26.5 % ; P < 0.05 ) .