Psychotherapy and Psychopathology Research Unit-CIPsi, School of Psychology, University of Minho, Campus de Gualtar, 4710, Braga, Portugal.
Eat Weight Disord. 2020 Jun;25(3):627-635. doi: 10.1007/s40519-019-00661-4. Epub 2019 Mar 5.
The purpose of the study was to assess the psychometric properties of the Portuguese version of the Clinical Impairment Assessment (CIA) in eating disorders (ED) patients.
The CIA is a 16-item brief self-reported instrument developed to assess psychosocial impairment secondary to EDs. The CIA was administered to a clinical sample of 237 women with EDs and a college sample of 196 women. The clinical sample completed the Eating Disorders Examination Questionnaire, the Beck Depression Inventory and the Outcome-45 Questionnaire. Reliability, confirmatory factor analysis, validity, and clinically significant change were calculated.
Confirmatory factor analysis validated the original 3-factor structure showing an adequate model fit. CIA showed good psychometric properties with high internal consistency, good convergent validity with the EDE-Q, the OQ-45, and the BDI. For divergent validity, participants CIA scores in the clinical sample were significantly higher than in the non-clinical sample. ROC curve analysis provided a cutoff of 15. For known-groups validity participants' scoring above CIA cutoff reported significantly higher CIA scores. In addition, non-underweight participants and participants reporting the presence of dysfunctional ED behaviors had significantly higher CIA scores. Finally, for clinically significant change, a reliable change index of 5 points was obtained to consider a reliable change in the CIA global score.
Our findings support the validity and clinical utility of the CIA as a good self-report measure to be used in both clinical and research settings.
Level V. Cross-sectional descriptive study.
本研究旨在评估临床损伤评估（CIA）葡萄牙版本在饮食障碍（ED）患者中的心理测量特性。
CIA 是一种 16 项简短的自我报告工具，用于评估 ED 继发的心理社会损伤。CIA 被用于 237 名 ED 临床样本和 196 名大学生样本。临床样本完成了饮食障碍检查问卷、贝克抑郁量表和结果 45 问卷。计算了可靠性、验证性因素分析、有效性和临床显著变化。
验证性因素分析验证了原始的 3 因素结构，显示出适当的模型拟合。CIA 具有较高的内部一致性，与 EDE-Q、OQ-45 和 BDI 具有良好的收敛有效性。对于发散有效性，临床样本中的 CIA 得分显著高于非临床样本。ROC 曲线分析提供了 15 的截止值。对于已知组有效性，得分高于 CIA 截止值的参与者报告的 CIA 得分显著更高。此外，非体重不足的参与者和报告存在功能失调的 ED 行为的参与者的 CIA 得分显著更高。最后，对于临床显著变化，获得了 5 分的可靠变化指数，以考虑 CIA 总分的可靠变化。
我们的研究结果支持 CIA 的有效性和临床实用性，作为一种良好的自我报告工具，可用于临床和研究环境。
V 级。横断面描述性研究。
