Table 1.

Validation Standards

ACHD PRO Domain	Comparison Standard
Physical limitations	SF‐36 Physical Function domain, KCCQ Physical Limitation scale, NYHA FC, 6 MWT
Symptoms	KCCQ Symptom score, NYHA FC
Arrhythmia	No valid scale exists
Quality of life	KCCQ Quality of Life scores, SF‐36 General Health score
Psychological Burden	PHQ‐8 and GAD‐7

6MWT indicates 6‐minute walk test; ACHD PRO, adult congenital heart disease patient‐reported outcome metric; GAD‐7, 7‐item Generalized Anxiety Disorder questionnaire; KCCQ, Kansas City Cardiomyopathy Questionnaire; NYHA FC, New York Heart Association functional class; PHQ‐8, 8‐item Patient Health Questionnaire; and SF‐36, Rand 36‐item Short Form.