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% |