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. 2023 Dec 15;36(1):9–17. doi: 10.5021/ad.23.090

Table 5. Acne inversa severity index (2015).

Variables Point x Coefficient x Number of areas* involved Total
Number of comedones 1
Number of abscesses, inflammatory nodules 2
Number of sinus tracts 3
Number of keloids, fibrotic adherences 4
Number of fibrosclerotic inflammatory plaques 5
Illness-VAS (0–10) - -

VAS: visual analogue scale.

*Areas: face, scalp, Rt/Lt axilla, Rt/Lt breast, trunk, Rt/Lt arm, Rt/Lt groin, Rt/Lt gluteus, perianal, Rt/Lt leg.