Department of Tranzo Academic Centre for Transformation in Care and Welfare, Faculty of Behavioural and Social Sciences, Tilburg University, Tilburg, The Netherlands.
J Am Med Dir Assoc. 2010 Jun;11(5):344-55. doi: 10.1016/j.jamda.2009.11.003. Epub 2010 May 8.
To assess the reliability, construct validity, and predictive (concurrent) validity of the Tilburg Frailty Indicator (TFI), a self-report questionnaire for measuring frailty in older persons.
Cross-sectional.
Community-based.
Two representative samples of community-dwelling persons aged 75 years and older (n = 245; n = 234).
The TFI was validated using the LASA Physical Activity Questionnaire, BMI, Timed Up & Go test, Four test balance scale, Grip strength test, Shortened Fatigue Questionnaire, Mini-Mental State Examination, Center for Epidemiologic Studies Depression Scale, Anxiety subscale of the Hospital Anxiety and Depression Scale, Mastery Scale, Loneliness Scale, and the Social Support List. Adverse outcomes were measured using the Groningen Activity Restriction Scale and questions regarding health care use. Quality of life was measured using the WHOQOL-BREF.
The test-retest reliability of the TFI was good: 0.79 for frailty, and from 0.67 to 0.78 for its domains for a 1-year time interval. The 15 single components, and the frailty domains (physical, psychological, social) of the TFI correlated as expected with validated measures, demonstrating both convergent and divergent construct validity of the TFI. The predictive validity of the TFI and its physical domain was good for quality of life and the adverse outcomes disability and receiving personal care, nursing, and informal care.
This study demonstrates that the psychometric properties of the TFI are good, when performed in 2 samples of community-dwelling older people. The results regarding the TFI's validity provide strong evidence for an integral definition of frailty consisting of physical, psychological, and social domains.
评估 Tilburg 衰弱指数（TFI）的可靠性、结构效度和预测（同期）效度，该指数是一种用于测量老年人衰弱的自我报告问卷。
横断面研究。
基于社区。
两个年龄在 75 岁及以上的社区居住者代表性样本（n=245；n=234）。
使用 LASA 体力活动问卷、BMI、起身并行走测试、四项平衡测试量表、握力测试、简化疲劳问卷、简易精神状态检查、流行病学研究抑郁量表、医院焦虑和抑郁量表的焦虑分量表、掌握量表、孤独量表和社会支持清单来验证 TFI。使用 Groningen 活动限制量表和关于医疗保健使用的问题来衡量不良后果。使用 WHOQOL-BREF 来衡量生活质量。
TFI 的重测信度良好：1 年时间间隔内，衰弱的重测信度为 0.79，其各领域的重测信度为 0.67 至 0.78。TFI 的 15 个单一成分和衰弱领域（身体、心理、社会）与经过验证的测量方法预期相关，表明 TFI 的结构效度具有同时的收敛性和发散性。TFI 及其身体领域的预测效度对于生活质量以及残疾和接受个人护理、护理和非正式护理等不良后果均良好。
本研究表明，TFI 的心理测量特性在两个社区居住的老年人样本中表现良好。关于 TFI 有效性的结果为包含身体、心理和社会领域的综合衰弱定义提供了有力证据。
