Linguistic and content validity of the norwegian patient-generated subjective global assessment

Rationale: The Patient-Generated Subjective Global Assessment (PG-SGA) is an instrument to screen and assess malnutrition and risk factors, and to triage for interventions. The Boxes (Weight, Food intake, Symptoms and Activities/function), i.e. the Short Form (SF), were designed to be completed by patients and the Worksheets by healthcare professionals (HCP). We translated and culturally adapted the original PG-SGA for the Norwegian setting, in concordance with the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) Principles. We aimed to test linguistic validity, i.e. comprehensibility and difficulty, and content validity (relevance) as perceived by cancer patients and HCP.