Erratum to: Psychometric evaluation of the Cystic Fibrosis Questionnaire-Revised in a national, US sample

Abstract

Purpose The psychometric properties of a health-related quality of life (HRQOL) instrument, the Cystic Fibrosis Questionnaire-Revised (CFQ-R), were evaluated in a national, US sample of patients with cystic fibrosis (CF). This is the first psychometric evaluation of the revised version of this instrument.Methods The Epidemiologic Study of CF is a national, US multicenter longitudinal cohort study containing CFQ-R and health outcomes data. Developmentally appropriate versions of the CFQ-R were available from 7,330 patients aged 6-70 years and a proxy version from 2,728 parents of schoolage children. The CFQ-R was completed during a ''stable'' or ''sick'' visit before recording health outcomes such as weight, lung function, and pulmonary exacerbations. Results There were few floor and ceiling effects and strong internal consistency (Cronbach alpha C0.70) for most scales. The CFQ-R consistently discriminated between patients seen for sick-versus-well visits, and among stages of disease severity based on lung function. As predicted, women with CF reported worse HRQOL than men on scales not related to body image and weight. Strong parent-child agreement was found on scales measuring observable behaviors (respiratory symptoms). Convergence between CFQ-R scales and health outcomes provided evidence of construct validity.Conclusions The CFQ-R demonstrated robust psychometric properties and consistent associations with health outcomes in a large national, US sample. Normative data are available to aid in interpretation.

Impact of <b><i>Pseudomonas aeruginosa</i></b> Infection on Respiratory Muscle Function in Adult Cystic Fibrosis Patients

“…QoL was assessed using the Cystic Fibrosis Questionnaire- Revised (CFQ-R) [26,27]. The CFQ-R contains 12 domains (scores ranging from 0 to 100), where higher scores represent a better QoL.…”

Impact of bronchiectasis and trapped air on quality of life and exacerbations in cystic fibrosis

“…Three age-appropriate versions of the Dutch CFQ-R were administered, using a multi-informant approach (table 1): 1) the CFQ-R Child version (ages 6-13 years; 35 items covering eight domains); 2) CFQ-R Parent version (caregivers of children aged 6-13 years; 43 items covering 11 domains); and 3) CFQ-R Teen/Adult version (ages o14 years; 47 items covering 12 domains) [13]. In addition to analysing the CFQ-R RSS, we analysed three health-related secondary domains: CFQ-R physical functioning, CFQ-R vitality and CFQ-R health perceptions scales.…”

“…All scale scores were standardised on a 0-100 scale, with higher scores indicating better health-related quality of life [13].…”

“…Standardised, well-validated measures of health-related quality of life in CF, such as the disease-specific Cystic Fibrosis Questionnaire-revised (CFQ-R) have been developed [13]. The CFQ-R consists of several domains (e.g.…”

Obesity and its Therapy: A Short Review

“…It was reported that the middle operation time in the Lap-APR was comparable when contrasted and that in the Open-APR bunch in their non-randomized forthcoming similar study. Randomized control study to illuminate the operation time is important [26].…”