Lehmann et al used a classification scheme for grading acne severity. This can be used for the initial patient assessment and for monitoring the response to therapy. The authors are from the Johns Hopkins University.
Parameters:
(1) comedones
(2) inflammatory lesions (pustules, nodules, etc)
(3) cysts
(4) total lesion count
Comedones |
Grade |
0 |
0 |
1 - 19 |
1 |
20 - 100 |
2 |
> 100 |
3 |
Inflammatory Lesions |
Grade |
0 |
0 |
1 - 14 |
1 |
15 - 50 |
2 |
> 50 |
3 |
Cysts |
Grade |
0 |
0 |
1 - 5 |
2 |
> 5 |
3 |
Total Lesion Count |
Grade |
0 |
0 |
1 - 29 |
1 |
30 - 125 |
2 |
> 125 |
3 |
where:
• The original table did not allocate 1 to 5 cysts to a grade.
acne severity =
= MAX(grade for the 4 parameters)
Grade |
Acne Severity |
0 |
absent |
1 |
mild |
2 |
moderate |
3 |
severe |
Specialty: Dermatology, Infectious Diseases, Pedatrics, Otolaryngology