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- W1488303614 abstract "To the Editor: Scheffer and colleagues have demonstrated that a visual analogue scale (VAS) could be a valuable alternative to established measures of fear of falling (FOF).1 This is important because, not only in emergency settings, short and valid instruments for many geriatric domains are wanted. However, a question such as “How much are you afraid of falling” rated on a scale from 1 to 10 might not depict the same domain as more-complex assessments such as the Falls Efficacy Scale—International (FES-I)2 and its short version.3 The VAS can not give an estimate of falls-related self efficacy and could be especially limited in assessing change. The author of this letter previously showed this in a study with geriatric inpatients.4 A VAS was compared with the original and short FES-I and with a dichotomous question on FOF in a geriatric rehabilitation clinic. The population studied was highly frail and cognitively impaired. In this article, the VAS used was named “polytomous global rating scale” or P-GRS, and the question was “Please rate your concern of falling from 0 to 10.” Comparison with the short FES-I showed that the VAS had a slightly lower criterion-related validity (Spearman correlation coefficient with the Late-Life Function and Disability Index was 0.47, vs 0.65 for the short FES-I) and lower sensitivity to change (standardised response mean (SRM)=0.19 vs SRM=0.34), although validity was adequate and comparable with what Scheffer and colleagues reported. In addition, median administration time was significantly lower (1 minute vs 3 minutes) and there were fewer missing values (∼4% vs 11%) for the VAS. Considering the interesting results by Scheffler and colleagues in a clearly better-functioning cohort of older people, it could be stated that the VAS should be preferred in an emergency setting when time is an important factor, and missing values are to be reduced to a minimum. For settings in which trajectories of FOF and the construct of falls-related self-efficacy are of greater interest, the short FES-I would be preferred. Maybe an algorithm with the VAS at the beginning and, after a certain threshold (e.g., 3 points) the short FES-I could be an option for inpatient and outpatient settings that is worth future studies. Conflict of Interest: Michael D. Denkinger is supported by a geriatric research grant from the Robert Bosch Foundation, Stuttgart, Germany, and from the Ministry of Science, Research and Arts, state of Baden-Wuerttemberg, as part of the Geriatric Competence Center, Ulm University, which did not have any influence on the content. Author Contributions: Denkinger: study concept and design, acquisition of subjects and/or data, analysis and interpretation of data, and preparation of manuscript. Sponsor's Role: None." @default.
- W1488303614 created "2016-06-24" @default.
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- W1488303614 date "2011-04-01" @default.
- W1488303614 modified "2023-09-23" @default.
- W1488303614 title "REDUCED SENSITIVITY TO CHANGE-A RELEVANT LIMITATION OF THE VISUAL ANALOGUE SCALE TO ASSESS FEAR OF FALLING?" @default.
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- W1488303614 doi "https://doi.org/10.1111/j.1532-5415.2011.03338.x" @default.
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