Table 1.

Eligibility Criteria

Inclusion criteria

• Male or female patients aged at least 21 years of age at the time of consent or date of death.

• Documented diagnosis of moderate to severe AD deemed to have been uncontrolled on systemic therapy according to clinical judgment within the previous 9 months.

• Diagnosed with moderate to severe AD a minimum of 24 months before the date of enrolment.

• Had previously been or were currently prescribed systemic therapy, or those who were eligible but intolerant to systemic therapy or those in whom systemic therapy was contraindicated.

• Provided consent for an external researcher to access medical records for data collection (living patients only).

• Referred into secondary/tertiary care at least 12 months prior to the date of data collection.

Exclusion criteria

• Patients involved in a clinical trial of an investigational product for AD during the study observation period.

• Living patients unwilling or unable to consent to the study.