Hassani Mehraban Afsoon, Soltanmohamadi Yasamin, Akbarfahimi Malahat, Taghizadeh Ghorban
1. Associate Professor of Occupational Therapy, Department of Occupational Therapy and Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
2. MSc of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Med J Islam Repub Iran. 2014 May 3;28:25. eCollection 2014.
Background Appropriate information about the functional capacity of patients with dementia disease plays an important role in assessment of their health status and functional independence. The purpose of the present study is to investigate the reliability and validity of the Lawton IADL Persian version in patients with dementia.
International Quality Of Life Assessment (IQOLA) approach was used for translation process and then content validity was assessed by five experts. To evaluate the reliability of the scale, test-retest, inter-rater reliability and items' internal consistency methods were used. To analyze the construct validity, the Functional Assessment Staging Test (FAST) was used. The results were reported based on the data collected from the Iranian Alzheimer Associations of 60 patients with dementia. (53.3% female, 46.7% male, Mean age=75.91 (SD=7.72)) RESULTS: No significant statistically differences were observed in the distribution of the experts' opinions (p>0.05). The correlations between first and second administrations of the test (SEM=0. 238, r=0.993, CI: 0.988-0.996) and first and second raters (r=0. 961, p<0.001) were very high. Internal consistency between items and the total score (0.606 >r>0.427) had almost an average power. There was a significant negative relationship between the participants' score in IADL and FAST (p<0.001).
These results confirm that the Persian version of the Lawton IADL Scale has excellent reliability and validity for dementia patients. And it can be used as clinical and research tool for assessment IADL and determine disease progression by professionals.
背景 有关痴呆症患者功能能力的适当信息在评估其健康状况和功能独立性方面起着重要作用。本研究的目的是调查Lawton IADL波斯语版本在痴呆症患者中的可靠性和有效性。
采用国际生活质量评估（IQOLA）方法进行翻译过程，然后由五位专家评估内容效度。为了评估量表的可靠性，使用了重测法、评分者间信度和项目内部一致性方法。为了分析结构效度，使用了功能评估分期测试（FAST）。结果基于从伊朗阿尔茨海默病协会收集的60名痴呆症患者的数据进行报告。（女性占53.3%，男性占46.7%，平均年龄=75.91（标准差=7.72））结果：专家意见分布无显著统计学差异（p>0.05）。测试的第一次和第二次施测之间的相关性（标准误=0.238，r=0.993，置信区间：0.988 - 0.996）以及第一位和第二位评分者之间的相关性（r=0.961，p<0.001）非常高。项目与总分之间的内部一致性（0.606>r>0.427）几乎具有平均效力。IADL参与者得分与FAST之间存在显著负相关（p<0.001）。
这些结果证实，Lawton IADL量表的波斯语版本对痴呆症患者具有出色的可靠性和有效性。它可以作为专业人员评估IADL和确定疾病进展的临床和研究工具。
