title: Measuring quality of life of cognitively impaired elderly inpatients in palliative care: psychometric properties of the QUALID and CILQ scales.
abstract: The study aimed to assess the psychometric properties of the Czech versions of the Quality of Life in Late-Stage Dementia (QUALID) and the Cognitively Impaired Life Quality (CILQ) scales for use in the palliative care setting in terminally ill patients with cognitive impairment.
  
  
  
  The sample comprised 306 cognitively impaired inpatients with advanced cancer and non-cancer conditions. In this cross-sectional study, two Quality of Life (QoL) measurements were performed at baseline and after five days. The dimensionality of the QUALID and CILQ scales was evaluated using a principal component analysis with Varimax rotation. Reliability was assessed using Cronbach's alpha; inter-rater reliability was evaluated with Kappa index. Test-retest stability was calculated using the intraclass correlation coefficients (ICCs) comparing scores from baseline and 3-5 days post-baseline. The construct validity of the QUALID and CILQ scale was established by Spearman's correlation coefficients with the Symptom Management at the End-of-Life in Dementia (SM-EOLD).
  
  
  
  Both scales were shown to have adequate validity and reliability (Cronbach's α = 0.812 for QUALID, and α = 0.73 for CILQ), good inter-rater agreement (QUALID: κ = 0.760; CILQ: κ = 0.801) as well as test-retest reliability (QUALID: ICC = 0.847; CILQ: ICC = 0.925).
  
  
  
  The Czech versions of the QUALID and CILQ scales may be recommended for use in the Czech Republic in the area of palliative care.
authors: a Department of Nursing and Midwifery, Faculty of Medicine , University of Ostrava , Ostrava , Czech Republic.
authors: Radka
authors: R
authors: Bužgová
authors: a Department of Nursing and Midwifery, Faculty of Medicine , University of Ostrava , Ostrava , Czech Republic.
authors: Radka
authors: R
authors: Kozáková
authors: a Department of Nursing and Midwifery, Faculty of Medicine , University of Ostrava , Ostrava , Czech Republic.
authors: Lucie
authors: L
authors: Sikorová
authors: a Department of Nursing and Midwifery, Faculty of Medicine , University of Ostrava , Ostrava , Czech Republic.
authors: Darja
authors: D
authors: Jarošová
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D060825:Cognitive Dysfunction / Q000523:psychology*; D003430:Cross-Sectional Studies; D018153:Czech Republic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010166:Palliative Care / Q000523:psychology*; D011594:Psychometrics / Q000295:instrumentation*; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*
keywords: Cognitively impaired; palliative care; psychometric evaluation; quality of life; reliability; validity