Can the Fatigue Severity Scale 7-item version be used across different patient populations as a generic fatigue measure--a comparative study using a Rasch model approach.
Can the Fatigue Severity Scale 7-item version be used across different patient populations as a generic fatigue measure--a comparative study using a Rasch model approach.
复制标题
DOI：
10.1186/1477-7525-12-24
复制
发表时间：
2014-02-22
影响因子：
3.6
通讯作者：
Lerdal A
中科院分区：
文献类型：
--
作者：
Johansson S;Kottorp A;Lee KA;Gay CL;Lerdal A
疲劳是一种致残症状，与各种慢性病患者的生活质量下降有关。将疲劳知识从一个群体转移到另一个群体在研究和医疗保健中都至关重要。两组之间的结局应具有有效性和可靠性可比性，并且不应受到诊断变异的过度影响。本研究评估疲劳严重程度量表7项版本（FSS-7）是否在多发性硬化症、中风或艾滋病毒/艾滋病患者中表现出相似的项目层次结构，以确保组间的有效比较，并提供内部量表效度的进一步证据。使用三种不同慢性疾病的三项不同研究的数据进行了二次比较分析：多发性硬化症，中风和艾滋病毒/艾滋病。这些研究中的每一项先前都得出结论，FSS-7在测量疲劳干扰方面比原始FSS具有更好的心理测量特性。对224名多发性硬化症患者、104名中风患者和316名艾滋病毒/艾滋病患者的数据进行了检查。选择项目反应理论和Rasch模型来分析三个诊断组之间FSS-7项目层次结构的相似性。发现三个样本中的两个样本的项目#3、#5、#6和#9存在跨样本差异，这引起了关于项目有效性的跨组问题。然而，疾病特异性和疾病通用Rasch措施在样本中相似，表明这三种慢性疾病中的个体疲劳干扰措施使用FSS-7仍然可以可靠地进行比较。三个样本之间的一些项目表现不同，但没有偏见的人的措施，从而表明，疲劳干扰这些疾病可能仍然是可靠的比较使用FSS-7分数。然而，使用FSS-7直接比较诊断组之间的疲劳原始总和评分时需要谨慎。在其他类型的慢性病中，需要对该量表进行进一步研究。
Fatigue is a disabling symptom associated with reduced quality of life in various populations living with chronic illnesses. The transfer of knowledge about fatigue from one group to another is crucial in both research and healthcare. Outcomes should be validly and reliably comparable between groups and should not be unduly influenced by diagnostic variations. The present study evaluates whether the Fatigue Severity Scale 7-item version (FSS-7) demonstrates similar item hierarchy across people with multiple sclerosis, stroke or HIV/AIDS to ensure valid comparisons between groups, and provide further evidence of internal scale validity. A secondary comparative analysis was performed using data from three different studies of three different chronic illnesses: multiple sclerosis, stroke and HIV/AIDS. Each of these studies had previously concluded that the FSS-7 has better psychometric properties than the original FSS for measuring fatigue interference. Data from 224 people with multiple sclerosis, 104 people with stroke and 316 people with HIV/AIDS were examined. Item response theory and a Rasch model were chosen to analyze the similarity of the FSS-7 item hierarchy across the three diagnostic groups Cross-sample differences were found for items #3, #5, #6 and #9 for two of the three samples, which raise questions about item validity across groups. However, disease-specific and disease-generic Rasch measures were similar across samples, indicating that individual fatigue interference measures in these three chronic illnesses might still be reliably comparable using the FSS-7. Some items performed differently between the three samples but did not bias person measures, thereby indicating that fatigue interference in these illnesses might still be reliably compared using FSS-7 scores. However, caution is warranted when comparing fatigue raw sum scores directly across diagnostic groups using the FSS-7. Further studies of the scale are needed in other types of chronic illnesses.
登录
查看更多内容
影响因子：
2.2
作者：
Lerdal, Anners;Bakken, Linda N.;Kim, Hesook Suzie
通讯作者：
Kim, Hesook Suzie
影响因子：
3
作者：
Henderson, M;Safa, F;Hotopf, M
通讯作者：
Hotopf, M
影响因子：
4.7
作者：
Lee, Kathryn A.;Gay, Caryl;Aouizerat, Bradley E.
通讯作者：
Aouizerat, Bradley E.
影响因子：
5.8
作者：
Lerdal, A.;Johansson, S.;von Koch, L.
通讯作者：
von Koch, L.
影响因子：
5.8
作者：
Mills, R. J.;Young, C. A.;Tennant, A.
通讯作者：
Tennant, A.