TABLE 1.
Global Acne Grading System score calculation
| AREA | FACTOR | GRADE* | LOCAL SCORE (FACTOR X GRADE) |
|---|---|---|---|
| Forehead | 2 | 0–4 | 2 x (Grade) |
| Right cheek | 2 | 0–4 | 2 x (Grade) |
| Left cheek | 2 | 0–4 | 2 x (Grade) |
| Nose | 1 | 0–4 | 1 x (Grade) |
| Chin | 1 | 0–4 | 1 x (Grade) |
| Chest, shoulders, back | 3 | 0–4 | 3 x (Grade) |
*
Grade for a given site was determined upon presence of the following: 0-no acne lesions; 1-comedones; 2-papules; 3-pustules; 4-nodules. For each patient, a total GAGS overall score was then computed by addition of all local scores