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一份用于测量居家下肢疾病患者起身和坐下时活动受限情况的问卷的改进。

Improvement of a questionnaire measuring activity limitations in rising and sitting down in patients with lower-extremity disorders living at home.

作者信息

Roorda Leo D, Molenaar Ivo W, Lankhorst Gustaaf J, Bouter Lex M

机构信息

Department of Rehabilitation Medicine, Institute for Research in Extramural Medicine, VU University Medical Center, Amsterdam, The Netherlands.

出版信息

Arch Phys Med Rehabil. 2005 Nov;86(11):2204-10. doi: 10.1016/j.apmr.2005.06.005.

Abstract

OBJECTIVE

To improve a self-administered questionnaire that includes 42 dichotomous items and measures activity limitations in rising and sitting down (R&S) in patients with lower-extremity disorders who live at home.

DESIGN

Cross-sectional study.

SETTING

Outpatient clinics of secondary and tertiary care centers.

PARTICIPANTS

Patients (N=759; 47% men; mean age +/- standard deviation, 60.7+/-15.2y) living at home, with lower-extremity disorders resulting from stroke, poliomyelitis, osteoarthritis, amputation, and complex regional pain syndrome type I.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

(1) Unidimensionality, indicating that items assess only a single construct; (2) fit with the one-parameter logistic model (OPLM), yielding information about patient and item location parameters; (3) intratest reliability, indicating consistency of patients' item scores; and (4) content validity, indicating completeness with which the items cover the important aspects of the construct that they are attempting to represent.

RESULTS

Thirty-nine of 42 items: (1) loaded on 1 component (variance explained, 59%; item component loadings, >or=.51), (2) showed good fit with the OPLM (P=.15), (3) had a good intratest reliability (Cronbach alpha=.96), and (4) had a good content validity (all important aspects represented).

CONCLUSIONS

A unidimensional scale that fits with the OPLM has been developed for measuring activity limitations in R&S in patients with lower-extremity disorders who live at home.

摘要

目的

改进一份自我管理问卷,该问卷包含42个二分制项目,用于测量居家的下肢疾病患者起身和坐下(R&S)时的活动受限情况。

设计

横断面研究。

地点

二级和三级护理中心的门诊诊所。

参与者

居家的患者(N = 759;47%为男性;平均年龄±标准差,60.7±15.2岁),患有因中风、小儿麻痹症、骨关节炎、截肢和I型复杂性区域疼痛综合征导致的下肢疾病。

干预措施

不适用。

主要观察指标

(1)单维度性,表明项目仅评估单一结构;(2)与单参数逻辑模型(OPLM)拟合,得出患者和项目位置参数的信息;(3)测试内信度,表明患者项目得分的一致性;(4)内容效度,表明项目覆盖其试图代表的结构重要方面的完整性。

结果

42个项目中的39个:(1)加载在1个成分上(方差解释率为59%;项目成分载荷≥0.51),(2)与OPLM拟合良好(P = 0.15),((3)具有良好测试内信度(克朗巴哈α系数=0.96),(4)具有良好内容效度(代表了所有重要方面)。

结论

已开发出一种与OPLM拟合的单维度量表,用于测量居家的下肢疾病患者R&S时的活动受限情况。

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