Andalusian Public Health System, District of Primary Health Care of Málaga-Valle del Guadalhorce and Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.
National Centre of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain.
Health Qual Life Outcomes. 2021 Mar 17;19(1):93. doi: 10.1186/s12955-021-01715-x.
Worldwide, type 2 diabetes mellitus (T2DM) is one of the most prevalent chronic diseases and one of those producing greatest impact on patients' day-to-day quality of life. Our study aim is to validate the "Living with Chronic Illness Scale" for a Spanish-speaking T2DM population.
In this observational, international, cross-sectional study, 582 persons with T2DM were recruited in primary care and outpatient hospital consultations, in Spain and Colombia, during the period from May 2018 to June 2019. The properties analysed were feasibility/acceptability, internal consistency, reliability, precision and (structural) content-construct validity including confirmatory factor analysis. The COSMIN checklist was used to assess the methodological/psychometric quality of the instrument.
The scale had an adequate internal consistency and test retest reliability (Cronbach's alpha = 0.90; intraclass correlation coefficient = 0.96, respectively). In addition, the instrument is precise (standard error of measurement = 3.34, with values < ½SD = 8.52) and correlates positively with social support (DUFSS) (r = 0.56), quality of life (WHOQOL-BREF) (r = 0.51-0.30) and ssatisfaction with life (SLS-6) (r = 0.50-0.38). The original 26-items version of the scale did not support totally the confirmatory factor analysis. The COSMIN checklist is favourable for all the properties analysed, although weaknesses are detected for structural validity.
The LW-CI-T2DM is a valid, reliable and accurate instrument for use in clinical practice to determine how a person's life is affected by the presence of diabetes. This instrument correlates well with the associated constructs of social support, quality of life and satisfaction. Additional research is needed to determine how well the questionnaire structure performs when robust factor analysis methods are applied.
在全球范围内，2 型糖尿病（T2DM）是最常见的慢性疾病之一，也是对患者日常生活质量影响最大的疾病之一。我们的研究目的是验证适用于西班牙语 T2DM 人群的“慢性病患者生活质量量表”。
在这项观察性、国际性、横断面研究中，2018 年 5 月至 2019 年 6 月期间，在西班牙和哥伦比亚的基层医疗和门诊医院就诊中招募了 582 名 T2DM 患者。分析的属性包括可行性/可接受性、内部一致性、可靠性、精密度和（结构）内容-结构效度，包括验证性因子分析。使用 COSMIN 清单评估工具的方法学/心理测量学质量。
该量表具有较好的内部一致性和重测信度（Cronbach's alpha 分别为 0.90 和 0.96）。此外，该量表具有较高的精确性（测量标准误差为 3.34，值 < ½SD 为 8.52），并与社会支持（DUFSS）（r = 0.56）、生活质量（WHOQOL-BREF）（r = 0.51-0.30）和生活满意度（SLS-6）（r = 0.50-0.38）呈正相关。原始的 26 项量表版本不完全支持验证性因子分析。COSMIN 清单对所有分析属性均有利，但在结构效度方面存在弱点。
LW-CI-T2DM 是一种有效的、可靠的、准确的工具，可用于临床实践中确定糖尿病对个人生活的影响。该工具与社会支持、生活质量和满意度等相关结构具有良好的相关性。需要进一步研究，以确定在应用稳健的因子分析方法时问卷结构的表现如何。
