Department of Orthopedics, The General Hospital of Western Theater Command, Tianhui Road 270, Chengdu City, 610000, People's Republic of China.
Sci Rep. 2021 May 7;11(1):9747. doi: 10.1038/s41598-021-87848-x.
As an effective scale for the condition assessment of patients with chronic ankle instability (CAI), the Cumberland Ankle Instability Tool (CAIT) is the most widely used scale, and its original version is written in English. Therefore, the purpose of our study is to apply the CAIT to Chinese patients and evaluate its responsiveness, reliability, and validity in terms of Chinese patients with CAI. First, we adapted the CAIT into the Chinese edition (CAIT-C), through which cross-cultural adaptation and translation can be carried out in a five-step procedure. Next, recruited patients completed the three periods of the Foot and Ankle Ability Measure (FAAM), CAIT-C, and the Medical Outcomes Study Short-Form 36 (SF-36) scales. Afterward, to assess the responsiveness, reliability, and validity, we calculated the standardized response mean (SRM), effect size (ES), Spearman's correlation coefficient (r), minimal detectable change (MDC), standard error of measurement (SEM), intraclass correlation coefficient (ICC), and Cronbach's alpha. Generally, in the use of CAI, 131, 119, and 86 patients favorably completed the three periods of the scales. The CAIT-C was proven to have good test-retest reliability (ICC = 0.930) and fine internal consistency (Cronbach's alpha = 0.845-0.878). The low-value of MDC (0.04-2.28) and SEM (1.73) show it is possible to detect clinical changes when we take advantage of CAIT-C. Good or moderate correlations (r = 0.422-0.738) were gained from the physical subscales of the SF-36 and the subscales of the FAAM and the CAIT-C. Fair or poor correlations (r = 0.003-0.360) were gained between the mental subscales of the SF-36 and the CAIT-C, which sufficiently indicated that the CAIT-C had good validity. Moreover, good responsiveness was observed in the CAIT-C (ES = 1.316, SRM = 1.418). The CAIT-C scale is an effective, valid, and reliable tool to evaluate Chinese CAI patients.
作为慢性踝关节不稳定（CAI）患者病情评估的有效量表，坎伯兰踝关节不稳定工具（CAIT）是应用最广泛的量表，其原始版本为英文。因此，我们的研究目的是将 CAIT 应用于中国患者，并评估其对中国 CAI 患者的反应性、可靠性和有效性。首先，我们通过五步程序将 CAIT 改编为中文版（CAIT-C），通过该程序可以进行跨文化适应性和翻译。接下来，招募的患者完成了三个时期的足踝能力测量（FAAM）、CAIT-C 和医疗结局研究 36 项简短形式（SF-36）量表。之后，为了评估反应性、可靠性和有效性，我们计算了标准化反应均值（SRM）、效应量（ES）、斯皮尔曼相关系数（r）、最小可检测变化（MDC）、测量标准误差（SEM）、组内相关系数（ICC）和克朗巴赫α系数。一般来说，在 CAI 的使用中，有 131、119 和 86 名患者顺利完成了三个时期的量表。CAIT-C 被证明具有良好的重测信度（ICC=0.930）和良好的内部一致性（克朗巴赫α=0.845-0.878）。MDC（0.04-2.28）和 SEM（1.73）低值表明，当我们利用 CAIT-C 时，可以检测到临床变化。SF-36 的身体子量表和 FAAM 及 CAIT-C 的子量表之间获得了较好或中度相关（r=0.422-0.738）。SF-36 的心理子量表和 CAIT-C 之间获得了较差或中等相关（r=0.003-0.360），这充分表明 CAIT-C 具有良好的有效性。此外，CAIT-C 表现出良好的反应性（ES=1.316，SRM=1.418）。CAIT-C 量表是评估中国 CAI 患者的一种有效、有效和可靠的工具。
