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Journal Article

Citation

Won CW. Ann. Geriatr. Med. Res. 2018; 22(1): 48.

Copyright

(Copyright © 2018, Korean Geriatrics Society)

DOI

10.4235/agmr.2018.22.1.48

PMID

32743245 PMCID

Abstract

First, we would like to present sincere gratitude for your interest in and appreciation of our work.

We agree with your opinion that there may be bias in asking the participants to recall falls over the last 3 months and also over the last year. However, that limitation had to be endured to compare the sum of quarterly recall and one annual recall over the period of the same year involving only telephone surveys. An interesting point to note is that we believed the participants who experienced falls earlier during the year would have higher discrepancy rates than those who experienced falls during the last quarter since memory decay develops over time.1) As seen in Table 2, the participants who fell only during the first quarter had higher recall discrepancy than the rest, although the statistical power could not be computed with significance. Of 19 participants who fell during the 4th quarter, 11 were new fallers, and, of these 11 fallers, 4 (36.4%) showed recall discrepancy, which is lower than the average recall discrepancy of others. We analyzed the clinical characteristics between the discrepant and matching recall groups, but there was no statistically significant difference between the 2 groups, and we did not include the analysis in the publication.

The most accurate method of identifying falls would be continuous monitoring of participants, but that is neither practical nor possible with community-dwelling older adults. fall immediately using calendar,2) diary,3) postcard,4) or direct phone call, as you mentioned. However, the purpose of our study was to provide a stepping stone for finding the optimal interval for telephone surveys during studies involving a large number of people such as the 2014 Survey of Living Conditions and Welfare Needs of Korean Older Persons, because most studies gather the data annually due to cost-benefit or administrative problems.5,6)
Therefore, the fundamental question you raised in the letter continues to be the same question we started asking...


Language: en

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