Test-retest reliability, internal consistency, construct validity and factor structure of a falls risk perception questionnaire in older adults with type 2 diabetes mellitus: a prospective cohort study

被引：35
作者：
Gravesande J. [1 ]
Richardson J. [1 ,2 ]
Griffith L. [1 ]
Scott F. [2 ]
机构：
[1] School of Rehabilitation Science, McMaster University, Room 403, 1400 Main St., W. Hamilton, L8S 1C7, ON
[2] Department of Health Research Methods, Evidence and Impact, McMaster University, 1280 Main St., W. Hamilton, L8S 4K1, ON
来源：
Archives of Physiotherapy | / 9卷 / 1期
关键词：
Balance; Diabetes; Fall risk; Older adults; Risk perception;
D O I：
10.1186/s40945-019-0065-4
中图分类号：
学科分类号：
摘要：
Background: Older adults with type 2 diabetes (DM2) are at increased risk of falling due to complications including: diabetic peripheral neuropathy, diabetic retinopathy, autonomic neuropathy and diabetic foot ulcers. The purpose of this study was to determine the test-retest reliability, internal consistency, construct validity and to perform factor analysis of a new falls Risk Perception Questionnaire (RPQ) in older community-dwelling adults with DM2. Methods: A prospective cohort of 30 community-dwelling older adults, ≥ 55 years, with DM2 was assembled. At baseline, perceived risk of falling, fear of falling and physical activity were measured. At time 2 (T2), at least 2 days later, perceived risk of falling was assessed again to determine the test-retest reliability of the RPQ. At time 3 (T3), approximately six weeks later, and time 4 (T4), at least 2 days after T3, perceived risk of falling was assessed by phone to determine the test-retest reliability of the RPQ when administered by phone. Results: The RPQ demonstrated excellent test-retest reliability when delivered in person (ICC = 0.78, 95% Confidence Interval, CI: 0.59–0.89) and by phone (ICC = 0.82, 95% CI: 0.65–0.91), good internal consistency (α = 0.78) and adequate construct validity (r = 0.52, 95% CI: 0.20–0.74, p = 0.003) in older adults with DM2. Conclusion: Given the good psychometric properties in this sample of persons with Diabetes, the RPQ has the potential to be used in clinical practice as a risk assessment and fall prevention tool. However, further testing needs to be done using a larger sample. © 2019, The Author(s).
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