手法を比較

	乾癬面積重症度指数（PASI）	EASI（アトピー性皮膚炎面積・重症度指数）
分野	皮膚科学	皮膚科学
系統	Process / pipeline	Process / pipeline
提唱年	1978	2001
提唱者	Fredriksson T, Pettersson U	Hanifin JM, Thurston M
種類	Clinician-rated	Clinician-rated
原典	Fredriksson T, Pettersson U. Severe psoriasis—oral therapy with a new retinoid. Dermatologica. 1978;157(4):238-244.	Hanifin JM, Thurston M, Omoto M, et al. The eczema area and severity index (EASI): assessment of reliability in atopic dermatitis. Experimental Dermatology. 2001;10(1):11-18.
別名	PASI Index	EASI Index
関連	2	2
概要	The PASI is the gold-standard clinician-administered measure of psoriasis severity and extent. Developed by Fredriksson and Pettersson in 1978, it evaluates four cardinal clinical signs (erythema, induration, desquamation) across four body regions, each weighted by anatomical importance. PASI is the most widely used endpoint in psoriasis clinical trials and is endorsed by regulatory agencies (FDA, EMA) and international dermatology societies.	The EASI is a structured, clinician-administered tool for assessing the extent and intensity of atopic dermatitis across the body. Developed by Hanifin and colleagues in 2001, it divides the body into four regions with weighted area factors, ensuring proportional contribution to total score. EASI has become the primary objective severity measure in atopic dermatitis clinical trials and is recommended by international regulatory authorities (FDA, EMA).