Fidelis-de-Paula-Gomes Cid André, Pinheiro Jocassia Silva, Takahasi Henrique Yuji, Silva André Pontes, Freitas Devyd Weyder do Nascimento, da Silva Souza Cesário, Dibai-Filho Almir Vieira
Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho, São Paulo, São Paulo, Brazil.
Department of Physical Education, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
J Hand Ther. 2022 Oct-Dec;35(4):501-506. doi: 10.1016/j.jht.2021.01.003. Epub 2021 Jan 14.
The Shoulder Pain and Disability Index (SPADI) is a measuring instrument for pain and disability in patients with shoulder dysfunction. However, its structure is controversial (ie, 1 or 2 domains).
To investigate the structural validity of the Brazilian version of the SPADI in patients with chronic shoulder pain.
Cross-sectional study.
Brazilian Portuguese speakers of both genders aged 18 years or older with shoulder pain for at least 90 days (chronic) were included in this study. The structure of the SPADI was assessed by means of exploratory factor analysis with the implementation of parallel analysis and by confirmatory factor analysis. For the latter, the following goodness-of-fit indices were considered: root mean square error of approximation with 90% confidence interval, comparative fit index, Tucker-Lewis index, standardized root mean square residual, and chi-square/degrees of freedom.
A total of 103 participants were included in the study. The original version of the SPADI with 2 domains and 13 items showed high covariance between domains (0.98), suggesting one-dimensionality. After exploratory factor analysis with the implementation of parallel analysis, one-dimensionality was found in the SPADI. Comparing models with 1 and 2 domains by means of confirmatory factor analysis, both presented adequate values (chi-square/degrees of freedom < 3; comparative fit index and Tucker-Lewis index > 0.90; root mean square error of approximation and standardized root mean square residual < 0.08). However, the model with one domain is more suitable for presenting lower values of Akaike information criterion (3308.713) and Bayesian information criterion (3377.216).
The Brazilian version of the SPADI has a one-dimensional structure with 13 items ("shoulder impairment" construct), in contrast to the version with 2 domains.
肩痛与功能障碍指数（SPADI）是一种用于评估肩部功能障碍患者疼痛和功能障碍的测量工具。然而，其结构存在争议（即1个或2个维度）。
探讨巴西版SPADI在慢性肩痛患者中的结构效度。
横断面研究。
本研究纳入年龄在18岁及以上、肩痛至少90天（慢性）的巴西葡萄牙语使用者。通过实施平行分析的探索性因素分析和验证性因素分析来评估SPADI的结构。对于后者，考虑以下拟合优度指标：90%置信区间的近似均方根误差、比较拟合指数、塔克-刘易斯指数、标准化均方根残差以及卡方/自由度。
共103名参与者纳入研究。原版包含2个维度和13个条目的SPADI显示维度间存在高度协方差（0.98），提示单维度性。在实施平行分析的探索性因素分析后，发现SPADI具有单维度性。通过验证性因素分析比较具有1个和2个维度的模型，两者均呈现出合适的值（卡方/自由度<3；比较拟合指数和塔克-刘易斯指数>0.90；近似均方根误差和标准化均方根残差<0.08）。然而，单维度模型更适合呈现更低的赤池信息准则值（3308.713）和贝叶斯信息准则值（3377.216）。
与2个维度版本的SPADI不同，巴西版SPADI具有一个包含13个条目的单维度结构（“肩部损伤”结构）。
