Observational Study Evaluating Long-Term Safety and Effectiveness of Humira in Patients With Hidradenitis Suppurativa

Percentage of participants achieving "Improved" of overall improvement by physician

Percentage of participants achieving overall improvement (improved, unchanged, impossible to evaluate) is assessed by physician.

Time frame: Up to Week 52

Percentage of participants achieving Hidradenitis Suppurativa Clinical Response (HiSCR)

HiSCR is defined as at least 50% reduction in the number of abscesses and inflammatory nodules and no increase in abscess count and no increase in draining fistula count relative to baseline.

Time frame: Up to week 52

Change in C-Reactive Protein (CRP)

CRP values are measured as an inflammatory parameter. Low CRP values mean less inflammation.

Time frame: From Baseline to Week 52

Change in Patient's global assessment of skin pain

Patient's global assessment of skin pain is evaluated on a 11-point scale with 0 for "no pain" and 10 for "worst skin pain imaginable."