Table 3.

Selected different classifications for hair loss evaluation found in the literature

	Grade 0	Grade 1	Grade2	Grade 3	Grade 4
WHO (1979)	No change	Minimal hair loss	Moderate, patchy alopecia	Complete alopecia, but reversible	Complete and non-reversible alopecia
Massey (2004)	No significant hair loss	Minor hair loss	Moderate hair loss	Significant hair loss	Total hair loss
Dean (1979)	0-25%	25-50%	50-75%	75-100%	-
Rugo (2013)	0%	<25%	25-50%	50-75%	>75%
This evaluation	0%	1-24%	25-49%	50-74%	75-100%