Table 2: Subject’s Global Assessment.

SGA Assessment Scale

0: my face is basically free of acne, with only an occasional blackhead and/or whitehead
1: my face has several blackheads and/or whiteheads and small pimples but there are no tender deep-seated bumps or cysts
2: my face has several to many blackheads and/or whiteheads and small- to medium-sized pimples, and may have one deep-seated bump or cyst
3: my face has many blackheads and/or whiteheads, many medium- to large-sized pimples, and perhaps a few deep-seated bumps or cysts
4: my face has blackheads and/or whiteheads, several to many medium- to large-sized pimples, and deep-seated bumps or cysts dominate