Federal University of Rio de Janeiro, School of Medicine, Rua Rodolpho Paulo Rocco, 255/ sala 9E11, Cidade Universitária, Ilha do Fundão, Zip Code 21941-913, Rio de Janeiro, RJ, Brazil.
Arch Gerontol Geriatr. 2013 Jul-Aug;57(1):39-45. doi: 10.1016/j.archger.2013.03.001. Epub 2013 Mar 26.
This study aims to assess the psychometric properties of the Brazilian version of the TFI, an instrument that identifies frailty in elderly individuals. We interviewed 219 individuals aged 60 or older, living in the community. Individuals were predominantly female (52.5%) and mean age was 70.5 (±7.9) years. In order to assess test-retest reliability, 101 individuals were re-interviewed by the same observer within seven to ten days after the first interview. The internal consistency of the instrument was assessed using Cronbach's alpha. To assess construct validity, we used established alternative measures for the items that constitute the TFI, such as: body mass index (BMI), timed up and go (TUG) test, whisper test, Snellen test, upper extremity strength clinical test and mini-mental state examination (MMSE). The test-retest reliability showed high percent agreement for all the items of the instrument, with values ranging from 63% to 100%. Test-retest reliabilities were good (total TFI score r=0.88; physical domain r=0.88; psychological domain r=0.88; and social domain r=0.67). Internal consistency reliability of the Brazilian version was satisfactory (Cronbach's alpha=0.78). The correlations between TFI items and their corresponding measures were consistent except for one item (related to "ability to deal with problems"), demonstrating both convergent and divergent construct validity of the TFI and its items. After the completion of all stages of transcultural adaptation, the Brazilian version of the TFI proved to be well suited for assessing frailty in the elderly population of Brazil.
本研究旨在评估 TFI 巴西版的心理测量特性，该工具可用于识别老年人的脆弱性。我们采访了 219 名年龄在 60 岁或以上、居住在社区中的个体。这些个体主要为女性（52.5%），平均年龄为 70.5（±7.9）岁。为了评估测试-重测信度，我们对 101 名个体在第一次访谈后的 7 至 10 天内由同一名观察者进行了重新访谈。我们使用 Cronbach's alpha 评估了工具的内部一致性。为了评估结构效度，我们使用了构成 TFI 的项目的既定替代措施，例如：体重指数（BMI）、计时起立行走测试（TUG）、耳语测试、Snellen 测试、上肢力量临床测试和简易精神状态检查（MMSE）。所有项目的测试-重测信度都显示出高百分比的一致性，范围从 63%到 100%。测试-重测信度良好（总 TFI 评分 r=0.88；身体领域 r=0.88；心理领域 r=0.88；和社会领域 r=0.67）。巴西版的内部一致性信度令人满意（Cronbach's alpha=0.78）。TFI 项目与其对应措施之间的相关性是一致的，除了一个项目（与“处理问题的能力”有关），这表明了 TFI 及其项目的收敛和发散结构效度。在完成文化适应性转化的所有阶段后，巴西版的 TFI 被证明非常适合评估巴西老年人群体的脆弱性。
