Funding

None.

Conflicts of Interests

Mette Gyldenløve: Outside the submitted work: Speaker honoraria from Galderma Nordic AB. Christoffer Nissen: Outside the submitted work: Served on advisory boards for UCB, LEO Pharma, and AbbVie. Sascha Stave None. Simon Francis Thomsen: Outside the submitted work: Speaker or served on advisory boards for AbbVie, Almirall, Eli Lilly, Galderma, Incyte, Janssen Pharmaceuticals, LEO Pharma, Novartis, Pfizer, Sanofi, UCB Pharma, and Union Therapeutics, and has received research support from AbbVie, Janssen Pharmaceuticals LEO Pharma, Novartis, Sanofi, and UCB Pharma. Alexander Egeberg: Outside the submitted work: Research funding from the Danish Psoriasis Foundation, the Kgl. Hofbuntmager Aage Bang Foundation, the Simon Spies Foundation, Pfizer, Eli Lilly, Novartis, AbbVie, and Janssen Pharmaceuticals. Consultant and/or speaker honoraria from AbbVie, Almirall, Bristol-Myers Squibb, Dermavant, Eli Lilly and Company, Galderma, Galápagos NV, Horizon Therapeutics, Janssen Pharmaceuticals, LEO Pharma, Mylan, Novartis, Pfizer, Samsung Bioepis Co., Ltd., UCB, and Union Therapeutics. Currently employed by LEO Pharma. Nikolai Loft: Outside the submitted work: Paid speaker for Eli Lilly, Janssen Cilag, and Sandoz.

Data Availability

The data that support the findings of this article are available from the corresponding author, upon reasonable request.

Author Contributions

Conceptualization: Mette Gyldenløve and Alexander Egeberg; Methodology: Mette Gyldenløve and Nikolai Loft; Formal analysis and investigation: Nikolai Loft; Writing—original draft preparation: Mette Gyldenløve and Nikolai Loft; Writing—review and editing: all authors; Funding acquisition: N/A; Resources: Christoffer Nissen, Simon Francis Thomsen, and Sascha Stave; Supervision: Nikolai Loft and Mette Gyldenløve.

Ethics Approval

Not required for this register-based study.

Consent to Participate

Not applicable.

Consent for Publication

Not applicable.