Recall of health-related quality of life: how does memory affect the SF-6D in patients with psoriasis or multiple sclerosis? A prospective observational study in Germany.

ABSTRACT: OBJECTIVE:This study aimed to quantify recall bias in the measurement of health-related quality of life (HRQoL), that is, the extent to which recollection is impaired and leads to distorted judgements. DESIGN:Prospective observational study. SETTING AND PARTICIPANTS:One hundred patients with two paradigmatic chronic diseases (50 with multiple sclerosis and 50 with psoriasis) were recruited at two outpatient clinics. METHODS AND OUTCOME MEASURES:Patients completed the online version of the 12-Item Short Form Survey (SF-12) repeatedly for 28 consecutive days: (1) daily, considering the past 24 hours; (2) weekly, considering the past 7 days; and (3) on the last day of data collection, considering the past 4 weeks. SF-12 scores for all three measurement approaches were subsequently converted i

SUBMITTER: Topp J 

PROVIDER: S-EPMC6887080 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature