Patient Journey, HS Burden and Unmet Need across Denmark and Norway: Real-World Data from the HISREG Registry
DOI:
https://doi.org/10.2340/actadv.v106.adv-2026-0505Keywords:
disease burden, hidradenitis suppurativa, quality of life, treatment needAbstract
Patients with hidradenitis suppurativa experience considerable disease burden and reduced health-related quality of life (HRQoL). Diagnostic delays are common and may impede timely treatment initiation, contributing to disease progression. This study utilizes data (2010–2022) from the Scandinavian Registry for hidradenitis suppurativa (HISREG) in adult patients with hidradenitis suppurativa. Here, we report time between first hidradenitis suppurativa-related symptom, general practitioner visit and dermatologist visit; Dermatology Life Quality Index (DLQI) score and most impacted items; and hidradenitis suppurativa treatment patterns in Denmark, Norway and both countries combined. Analysis was stratified by Hurley stage. In both countries combined, considerable gaps (≥10 years) were reported between first hidradenitis suppurativa-related symptom and dermatologist visit, with the greatest delay in Hurley stage III patients (14 years). Mean DLQI scores ranged from 8.6 to 14.6; scores were highest in Hurley stage III patients. The most impacted DLQI items were “Itch/soreness/pain” or “Bothered/embarrassed”. Surgery was more common in Hurley stage III vs I patients (30.1% vs 10.6%); 8.6% of Hurley stage III patients did not receive additional intervention for hidradenitis suppurativa (doctor-determined). In conclusion, HISREG-registered patients experienced substantial delays to dermatologist visits, impaired HRQoL and a paucity of effective treatments. These burdens were particularly pronounced for patients with moderate and severe hidradenitis suppurativa.
Downloads
References
Montero-Vilchez T, Diaz-Calvillo P, Rodriguez-Pozo JA, Cuenca-Barrales C, Martinez-Lopez A, Arias-Santiago S, et al. The burden of hidradenitis suppurativa signs and symptoms in quality of life: Systematic review and meta-analysis. Int J Environ Res Public Health 2021; 18: 6709. DOI: https://doi.org/10.3390/ijerph18136709
Preda-Naumescu A, Ahmed HN, Mayo TT, Yusuf N. Hidradenitis suppurativa: pathogenesis, clinical presentation, epidemiology, and comorbid associations. Int J Dermatol 2021; 60: e449–e458. DOI: https://doi.org/10.1111/ijd.15579
Ingram JR, Marzano AV, Prens E, Schneider-Burrus S, Warren RB, Keal A, et al. Hidradenitis suppurativa with and without draining tunnels: A real-world study characterizing differences in treatment and disease burden. J Eur Acad Dermatol Venereol 2025; 39: 1431–1441. DOI: https://doi.org/10.1111/jdv.20550
Zouboulis CC. The socioeconomic burden of hidradenitis suppurativa/acne inversa. Br J Dermatol 2019; 181: 7–8. DOI: https://doi.org/10.1111/bjd.17396
Garg A, Neuren E, Cha D, Kirby JS, Ingram JR, Jemec GBE, et al. Evaluating patients’ unmet needs in hidradenitis suppurativa: Results from the global survey of impact and healthcare neGlobal Survey Of Impact and Healthcare Needs (VOICE) Project. J Am Acad Dermatol 2020; 82: 366–376. DOI: https://doi.org/10.1016/j.jaad.2019.06.1301
Kokolakis G, Wolk K, Schneider-Burrus S, Kalus S, Barbus S, Gomis-Kleindienst S, et al. Delayed diagnosis of hidradenitis suppurativa and its effect on patients and healthcare sy Diagnosis of Hidradenitis Suppurativa and Its Effect on Patients and Healthcare System. Dermatology 2020; 236: 421–430. DOI: https://doi.org/10.1159/000508787
Garg A, Besen J, Legler A, Lam CS. Factors associated with point-of-care treatment decisions for hidradenitis suppuAssociated With Point-of-Care Treatment Decisions for Hidradenitis Suppurativa. JAMA Dermatol 2016; 152: 553–557. DOI: https://doi.org/10.1001/jamadermatol.2015.4593
Ingvarsson G, Dufour DN, Killasli H, Sartorius K, Lapins J, Skau PA, et al. Development of a clinical Scandinavian registry for hidradenitis suppurativa; HISREG. Acta Derm Venereol 2013; 93: 350–351. DOI: https://doi.org/10.2340/00015555-1468
Finlay AY, Khan GK. Dermatology Life Quality Index (DLQI)--a simple practical measure for routine clinical use. Clin Exp Dermatol 1994; 19: 210–216. DOI: https://doi.org/10.1111/j.1365-2230.1994.tb01167.x
Hongbo Y, Thomas CL, Harrison MA, Salek MS, Finlay AY. Translating the science of quality of life into practice: What do dermatology life quality index scores mean? J Invest Dermatol 2005; 125: 659–664. DOI: https://doi.org/10.1111/j.0022-202X.2005.23621.x
Health at a Glance 2025: Denmark [Internet]. Paris: Organisation for Economic Co-operation and Development (OECD); 2025. [cited 2026 July 24]. Available from: https://www.oecd.org/en/publications/health-at-a-glance-2025_15a55280-en/denmark_8675bb29-en.html
OECD. Health at a Glance 2025: Norway [Internet]. Paris: Organisation for Economic Co-operation and Development (OECD); 2025. [cited 2026 July 24]. Available from: https://www.oecd.org/en/publications/health-at-a-glance-2025_15a55280-en/norway_3b4abde5-en.html
Knecht-Gurwin K, Gurwin A, Łyko M, Drewa T, Kielan W, Mastalerz-Migas A, et al. An assessment of clinician knowledge of hidradenitis suppurativa: Insights from a multidisciplinary survey study. J Clin Med 2025; 14: 3171. DOI: https://doi.org/10.3390/jcm14093171
Lopes S, Vide J, Costa-Silva M, Azevedo F, Magina S. Awareness, knowledge, and practice patterns of general practitioner residents and specialists toward hidradenitis suppurativa: a survey study. Acta Dermatovenerol Alp Pannonica Adriat 2019; 28: 61–63. DOI: https://doi.org/10.15570/actaapa.2019.16
Bouazzi D, Theut Riis P, Jemec GBE. Emergency Doctor’s ability to diagnose Hidradenitis Suppurativa. J Eur Acad Dermatol Venereol 2020; 34: e712–e714. DOI: https://doi.org/10.1111/jdv.16536
Snyder CL, Chen SX, Porter ML. Obstacles to early diagnosis and treatment of hidradenitis suppurativa: current perspectives on improving clinical manEarly Diagnosis and Treatment of Hidradenitis Suppurativa: Current Perspectives on Improving Clinical Management. Clin Cosmet Investig Dermatol 2023; 16: 1833–1841. DOI: https://doi.org/10.2147/CCID.S301794
Tzellos T. Conventional treatment of hidradenitis suppurativa: Serving the “window of opportunity” concept. Clin Dermatol 2025; 43: 485–489. DOI: https://doi.org/10.1016/j.clindermatol.2025.05.015
Additional Files
Published
How to Cite
License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All digitalized ActaDV contents is available freely online. The Society for Publication of Acta Dermato-Venereologica owns the copyright for all material published until volume 88 (2008) and as from volume 89 (2009) the journal has been published fully Open Access, meaning the authors retain copyright to their work.
Unless otherwise specified, all Open Access articles are published under CC-BY-NC licences, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material for non-commercial purposes, provided proper attribution to the original work.
