Epidemiological survey of the feasibility of broadband ultrasound attenuation measured using calcaneal quantitative ultrasound to predict the incidence of falls in the middle aged and elderly

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Abstract

Objectives: We investigated whether calcaneal quantitative ultrasound (QUS-C) is a feasible tool for predicting the incidence of falls. Design: Prospective epidemiological cohort study. Setting: Community-dwelling people sampled in central western Taiwan. Participants: A cohort of community-dwelling people who were =40 years old (men: 524; women: 676) in 2009-2010. Follow-up questionnaires were completed by 186 men and 257 women in 2012. Methods: Structured questionnaires and broadband ultrasound attenuation (BUA) data were obtained in 2009-2010 using QUS-C, and follow-up surveys were done in a telephone interview in 2012. Using a binary logistic regression model, the risk factors associated with a new fall during follow-up were analysed with all significant variables from the bivariate comparisons and theoretically important variables. Primary outcome measures: The incidence of falls was determined when the first new fall occurred during the follow-up period. The mean follow-up time was 2.83 years. Results: The total incidence of falls was 28.0 per 1000 person-years for the =40 year old group (all participants), 23.3 per 1000 person-years for the 40-70 year old group, and 45.6 per 1000 person-years for the =70 year old group. Using multiple logistic regression models, the independent factors were current smoking, living alone, psychiatric drug usage and lower BUA (OR 0.93; 95% CI 0.88 to 0.99, p<0.05) in the =70 year old group. Conclusions: The incidence of falls was highest in the =70 year old group. Using QUS-C-derived BUA is feasible for predicting the incidence of falls in community-dwelling elderly people aged =70 years.

Original languageEnglish
Article numbere013420
JournalBMJ open
Volume7
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

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Independent Living
Logistic Models
Incidence
Taiwan
Psychiatry
Epidemiologic Studies
Cohort Studies
Smoking
Outcome Assessment (Health Care)
Surveys and Questionnaires
Interviews
Pharmaceutical Preparations

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

@article{0a8a6fa48e4c4e8599399e910d3de5d1,
title = "Epidemiological survey of the feasibility of broadband ultrasound attenuation measured using calcaneal quantitative ultrasound to predict the incidence of falls in the middle aged and elderly",
abstract = "Objectives: We investigated whether calcaneal quantitative ultrasound (QUS-C) is a feasible tool for predicting the incidence of falls. Design: Prospective epidemiological cohort study. Setting: Community-dwelling people sampled in central western Taiwan. Participants: A cohort of community-dwelling people who were =40 years old (men: 524; women: 676) in 2009-2010. Follow-up questionnaires were completed by 186 men and 257 women in 2012. Methods: Structured questionnaires and broadband ultrasound attenuation (BUA) data were obtained in 2009-2010 using QUS-C, and follow-up surveys were done in a telephone interview in 2012. Using a binary logistic regression model, the risk factors associated with a new fall during follow-up were analysed with all significant variables from the bivariate comparisons and theoretically important variables. Primary outcome measures: The incidence of falls was determined when the first new fall occurred during the follow-up period. The mean follow-up time was 2.83 years. Results: The total incidence of falls was 28.0 per 1000 person-years for the =40 year old group (all participants), 23.3 per 1000 person-years for the 40-70 year old group, and 45.6 per 1000 person-years for the =70 year old group. Using multiple logistic regression models, the independent factors were current smoking, living alone, psychiatric drug usage and lower BUA (OR 0.93; 95{\%} CI 0.88 to 0.99, p<0.05) in the =70 year old group. Conclusions: The incidence of falls was highest in the =70 year old group. Using QUS-C-derived BUA is feasible for predicting the incidence of falls in community-dwelling elderly people aged =70 years.",
author = "Ou, {Ling Chun} and Yin-Fan Chang and Chin-Sung Chang and Ching-Ju Chiu and Ting-Hsing Chao and Zih-Jie Sun and Lin, {Ruey Mo} and Chih-Hsing Wu",
year = "2017",
month = "1",
day = "1",
doi = "10.1136/bmjopen-2016-013420",
language = "English",
volume = "7",
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TY - JOUR

T1 - Epidemiological survey of the feasibility of broadband ultrasound attenuation measured using calcaneal quantitative ultrasound to predict the incidence of falls in the middle aged and elderly

AU - Ou, Ling Chun

AU - Chang, Yin-Fan

AU - Chang, Chin-Sung

AU - Chiu, Ching-Ju

AU - Chao, Ting-Hsing

AU - Sun, Zih-Jie

AU - Lin, Ruey Mo

AU - Wu, Chih-Hsing

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Objectives: We investigated whether calcaneal quantitative ultrasound (QUS-C) is a feasible tool for predicting the incidence of falls. Design: Prospective epidemiological cohort study. Setting: Community-dwelling people sampled in central western Taiwan. Participants: A cohort of community-dwelling people who were =40 years old (men: 524; women: 676) in 2009-2010. Follow-up questionnaires were completed by 186 men and 257 women in 2012. Methods: Structured questionnaires and broadband ultrasound attenuation (BUA) data were obtained in 2009-2010 using QUS-C, and follow-up surveys were done in a telephone interview in 2012. Using a binary logistic regression model, the risk factors associated with a new fall during follow-up were analysed with all significant variables from the bivariate comparisons and theoretically important variables. Primary outcome measures: The incidence of falls was determined when the first new fall occurred during the follow-up period. The mean follow-up time was 2.83 years. Results: The total incidence of falls was 28.0 per 1000 person-years for the =40 year old group (all participants), 23.3 per 1000 person-years for the 40-70 year old group, and 45.6 per 1000 person-years for the =70 year old group. Using multiple logistic regression models, the independent factors were current smoking, living alone, psychiatric drug usage and lower BUA (OR 0.93; 95% CI 0.88 to 0.99, p<0.05) in the =70 year old group. Conclusions: The incidence of falls was highest in the =70 year old group. Using QUS-C-derived BUA is feasible for predicting the incidence of falls in community-dwelling elderly people aged =70 years.

AB - Objectives: We investigated whether calcaneal quantitative ultrasound (QUS-C) is a feasible tool for predicting the incidence of falls. Design: Prospective epidemiological cohort study. Setting: Community-dwelling people sampled in central western Taiwan. Participants: A cohort of community-dwelling people who were =40 years old (men: 524; women: 676) in 2009-2010. Follow-up questionnaires were completed by 186 men and 257 women in 2012. Methods: Structured questionnaires and broadband ultrasound attenuation (BUA) data were obtained in 2009-2010 using QUS-C, and follow-up surveys were done in a telephone interview in 2012. Using a binary logistic regression model, the risk factors associated with a new fall during follow-up were analysed with all significant variables from the bivariate comparisons and theoretically important variables. Primary outcome measures: The incidence of falls was determined when the first new fall occurred during the follow-up period. The mean follow-up time was 2.83 years. Results: The total incidence of falls was 28.0 per 1000 person-years for the =40 year old group (all participants), 23.3 per 1000 person-years for the 40-70 year old group, and 45.6 per 1000 person-years for the =70 year old group. Using multiple logistic regression models, the independent factors were current smoking, living alone, psychiatric drug usage and lower BUA (OR 0.93; 95% CI 0.88 to 0.99, p<0.05) in the =70 year old group. Conclusions: The incidence of falls was highest in the =70 year old group. Using QUS-C-derived BUA is feasible for predicting the incidence of falls in community-dwelling elderly people aged =70 years.

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U2 - 10.1136/bmjopen-2016-013420

DO - 10.1136/bmjopen-2016-013420

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AN - SCOPUS:85009499875

VL - 7

JO - BMJ Open

JF - BMJ Open

SN - 2044-6055

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