Master and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, Brazil.
Division of Physical Therapy, Instituto de Assistência Médica ao Servidor Público Estadual, São Paulo, Brazil.
PLoS One. 2020 Mar 18;15(3):e0230047. doi: 10.1371/journal.pone.0230047. eCollection 2020.
To translate and adapt cross-culturally the De Morton Mobility Index from English to Brazilian Portuguese. Furthermore, to test the content validity, reliability, construct validity, interpretability and responsiveness for older hospitalized patients.
After we carried out the translation and the cross-cultural adaptation of the De Morton Mobility Index and its administration instructions according to international guidelines, the content validity of De Morton Mobility Index was tested by experienced physiotherapists. In the sequence, the reliability, construct validity, interpretability and responsiveness were tested in a test-retest design with 93 older patients hospitalized in ward for clinical reasons. The reliability was tested by Cronbach's alpha coefficient (internal consistency), standard error measurement (agreement), and interclass correlation coefficients (intra and inter-examiner reliability). The construct validity was tested by Pearson's correlation between the De Morton Mobility Index score and the number of steps. Interpretability was analyzed by determining the minimum detectable change and the floor and ceiling effects (frequency of maximum and minimum scoring). Responsiveness was analyzed by effect size.
The Brazilian version of the De Morton Mobility Index was made and adapted. The internal consistency (α = 0.89), reliability intra-(ICC = 0.94) and inter-examiners (ICC = 0.82), agreement were all adequate. The De Morton Mobility Index is validity when correlated with number of steps (r = 0.46). Floor or ceiling effects (<15%) were not observed and the responsiveness was high (ES = 3.65).
The De Morton Mobility Index has shown adequate reliability, validity, interpretability and responsiveness for the evaluation of the mobility of older hospitalized patients.
将 De Morton 活动能力指数从英文翻译成巴西葡萄牙文，并进行跨文化调适。此外，还将对住院老年患者进行内容效度、信度、结构效度、可解释性和反应度测试。
根据国际指南，我们完成了 De Morton 活动能力指数及其使用说明的翻译和跨文化调适后，由经验丰富的物理治疗师对 De Morton 活动能力指数的内容效度进行了测试。随后，我们采用测试-再测试设计，对 93 名因临床原因住院的老年患者进行了可靠性、结构效度、可解释性和反应度测试。可靠性通过 Cronbach's alpha 系数（内部一致性）、标准误差测量（一致性）和组内和组间相关系数（内部和外部测试者可靠性）进行测试。结构效度通过 De Morton 活动能力指数评分与步数之间的 Pearson 相关进行测试。可解释性通过确定最小可检测变化和地板效应和天花板效应（最大和最小评分的频率）来进行分析。反应度通过效应量进行分析。
制作并调适了巴西版的 De Morton 活动能力指数。内部一致性（α=0.89）、组内（ICC=0.94）和组间（ICC=0.82）可靠性以及一致性均良好。De Morton 活动能力指数与步数呈相关性（r=0.46）。未观察到地板效应或天花板效应（<15%），反应度较高（ES=3.65）。
De Morton 活动能力指数在评估住院老年患者的活动能力方面表现出良好的信度、效度、可解释性和反应度。
