Quality of life in patients with early- and late-onset hidradenitis suppurativa.

Hidradenitis suppurativa (HS) usually has an early onset, however, also onset in the mid-40 s may occur. Recently, the threshold of 28 years to distinguish patients with early and late onset has been proposed. The objective of our study was to compare the quality of life (QoL) and psychological distress in early- and late-onset HS patients. In this cross-sectional, observational study, consecutive patients diagnosed with HS aged ≥ 16 years were recruited. Dermatology-specific QoL was evaluated using the Skindex-17 questionnaire, and psychological distress using the 12-item General Health Questionnaire (GHQ-12). Patients were categorized into "early onset" (< 28 years) and "late onset" (≥ 28 years). Data were collected on 467 patients. Mean age at diagnosis was 21.6 years, with 22.0% of patients presenting with late disease onset. Patients with late onset reported worse psychosocial QoL and higher psychological distress compared to early onset. No differences between the two groups were observed for clinical severity. In the final multivariate model lower diagnostic delay, higher number of fistulae, higher BMI, ex-smoker, no localization on axillae, no localization on mammary region, presence of psoriasis, and higher scores on the psychosocial scale of Skindex-17 were statistically significantly associated with late onset. In conclusion, the psychosocial impact of HS is higher in patients with late onset compared to those with early onset. Differences between these two groups should be further investigated.