bDMARDs	Biologic disease-modifying antirheumatic drugs
CASPAR	Classification Criteria for Psoriatic Arthritis
Clin+/US−	Clinically active but ultrasound-negative enthesitis
Clin−/US+	Clinically silent but ultrasound-active enthesitis
Clin+/US+	Clinically active and ultrasound-positive enthesitis
Clin−/US−	Clinically silent and ultrasound-negative enthesitis
DAPSA	Disease Activity in Psoriatic Arthritis
GRAPPA	Group for Research and Assessment of Psoriasis and Psoriatic Arthritis
IL-17i	Interleukin-17 inhibitors
LEI	Leeds Enthesitis Index
PGA	Patient global assessment
SJC	Swollen joint count
TJC	Tender joint count
TNFi	Tumour necrosis factor inhibitors
US	Ultrasound