Faculty of Nursing and Chiropody, University of Valencia, Valencia, Spain.
National Centre of Epidemiology and Consortium for Biomedical Research in Neurodegenerative Diseases (Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas/CIBERNED), Carlos III Institute of Health, Madrid, Spain.
BMJ Open. 2021 Mar 12;11(3):e039973. doi: 10.1136/bmjopen-2020-039973.
To validate the Living with Chronic Illness (LW-CI) Scale in patients with chronic obstructive pulmonary disease (COPD).
Observational, cross-sectional validation study with retest. Acceptability, reliability, precision and construct validity were tested.
The study took place in primary and secondary specialised units of public and private hospitals of Spain and Colombia.
The study included 612 patients with COPD assessed from May 2018 to May 2019. A consecutive cases sampling was done. Inclusion criteria included: (A) patients with a diagnosis of COPD; (B) native Spanish speaking; (C) able to read and understand questionnaires; and (D) able to provide informed consent. Exclusion criteria included: (A) cognitive deterioration and (B) pharmacological effect or disorder that could disrupt the assessment.
The LW-CI-COPD presented satisfactory data quality, with no missing data or floor/ceiling effects, showing high internal consistency for all the domains (Cronbach's alpha for the total score 0.92). Test-retest reliability was satisfactory (intraclass correlation coefficient=0.92). The LW-CI-COPD correlated 0.52-0.64 with quality of life and social support measures. The scale demonstrated satisfactory known-groups validity, yielding significantly different scores in patients grouped according to COPD severity levels.
This has been the first validation study of the LW-CI-COPD. It is a feasible, reliable, valid and precise self-reported scale to measure living with COPD in the Spanish-speaking population. Therefore, it could be recommended for research and clinical practice to measure this concept and evaluate the impact of centred-care interdisciplinary interventions based on the patients' perspective, focused on providing holistic and comprehensive care to patients with COPD.
验证慢性阻塞性肺疾病（COPD）患者的慢性疾病生活量表（LW-CI）。
观察性、横断面验证研究，进行复测。测试了可接受性、可靠性、精度和构念效度。
该研究于 2018 年 5 月至 2019 年 5 月在西班牙和哥伦比亚的公立和私立医院的初级和二级专科单位进行。
该研究纳入了 612 名 COPD 患者，他们于 2018 年 5 月至 2019 年 5 月进行评估。采用连续病例抽样法。纳入标准包括：（A）COPD 诊断患者；（B）母语为西班牙语；（C）能够阅读和理解问卷；（D）能够提供知情同意。排除标准包括：（A）认知功能下降和（B）可能影响评估的药物作用或疾病。
LW-CI-COPD 具有令人满意的数据质量，无缺失数据或地板/天花板效应，所有领域的内部一致性均较高（总评分 Cronbach's alpha 为 0.92）。测试-重测信度令人满意（组内相关系数=0.92）。LW-CI-COPD 与生活质量和社会支持措施的相关性为 0.52-0.64。该量表具有令人满意的已知组有效性，根据 COPD 严重程度分组的患者评分差异显著。
这是 LW-CI-COPD 的首次验证研究。它是一种可行、可靠、有效且精确的自我报告量表，可用于测量西班牙语人群中 COPD 的生活状况。因此，它可以推荐用于研究和临床实践，以衡量这一概念，并根据患者的观点评估以患者为中心的跨学科干预措施的影响，重点是为 COPD 患者提供整体和全面的护理。
