Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies

Abstract Background Medications influencing the risk of fall-related injuries (FRIs) in older adults have been inconsistent in previous guidelines. This study employed case–control design to assess the association between FRIs and medications, and an additional case-crossover design was conducted to...

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Main Authors: Yu-Seon Jung, David Suh, Eunyoung Kim, Hee-Deok Park, Dong-Churl Suh, Sun-Young Jung
Format: Article
Language:English
Published: BMC 2023-07-01
Series:BMC Geriatrics
Subjects:
Online Access:https://doi.org/10.1186/s12877-023-04138-z
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author Yu-Seon Jung
David Suh
Eunyoung Kim
Hee-Deok Park
Dong-Churl Suh
Sun-Young Jung
author_facet Yu-Seon Jung
David Suh
Eunyoung Kim
Hee-Deok Park
Dong-Churl Suh
Sun-Young Jung
author_sort Yu-Seon Jung
collection DOAJ
description Abstract Background Medications influencing the risk of fall-related injuries (FRIs) in older adults have been inconsistent in previous guidelines. This study employed case–control design to assess the association between FRIs and medications, and an additional case-crossover design was conducted to examine the consistency of the associations and the transient effects of the medications on FRIs. Methods This study was conducted using a national claims database (2002–2015) in Korea. Older adults (≥ 65 years) who had their first FRI between 2007 and 2015 were matched with non-cases in 1:2 ratio. Drug exposure was examined for 60 days prior to the date of the first FRI (index date) in the case–control design. The hazard period (1–60 days) and two control periods (121–180 and 181–240 days prior to the index date) were investigated in the case-crossover design. The risk of FRIs with 32 medications was examined using conditional logistic regression after adjusting for other medications that were significant in the univariate analysis. In the case-crossover study, the same conditional model was applied. Results In the case–control design, the five medications associated with the highest risk of FRIs were muscle relaxants (adjusted odd ratio(AOR) = 1.35, 95% confidence interval (CI) = 1.31–1.39), anti-Parkinson agents (AOR = 1.30, 95%CI = 1.19–1.40), opioids (AOR = 1.23, 95%CI = 1.19–1.27), antiepileptics (AOR = 1.19, 95%CI = 1.12–1.26), and antipsychotics (AOR = 1.16, 95%CI = 1.06–1.27). In the case-crossover design, the five medications associated with the highest risk of FRIs were angiotensin II antagonists (AOR = 1.87, 95%CI = 1.77–1.97), antipsychotics (AOR = 1.63, 95%CI = 1.42–1.83), anti-Parkinson agents (AOR = 1.58, 95%CI = 1.32–1.85), muscle relaxants (AOR = 1.42, 95%CI = 1.35–1.48), and opioids (AOR = 1.35, 95%CI = 1.30–1.39). Conclusions Anti-Parkinson agents, opioids, antiepileptics, antipsychotics, antidepressants, hypnotics and sedatives, anxiolytics, muscle relaxants, and NSAIDs/antirheumatic agents increased the risk of FRIs in both designs among older adults. Medications with a significant risk only in the case-crossover analysis, such as antithrombotic agents, calcium channel blockers, angiotensin II antagonists, lipid modifying agents, and benign prostatic hypertrophy agents, may have transient effects on FRIs at the time of initiation. Corticosteroids, which were only associated with risk of FRIs in the case–control analysis, had more of cumulative than transient effects on FRIs.
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spelling doaj.art-a935b054a2bc4cd48e44ad58c36d621d2023-07-23T11:26:16ZengBMCBMC Geriatrics1471-23182023-07-0123111310.1186/s12877-023-04138-zMedications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studiesYu-Seon Jung0David Suh1Eunyoung Kim2Hee-Deok Park3Dong-Churl Suh4Sun-Young Jung5Chung-Ang University College of PharmacySchool of Public Health, University of MichiganChung-Ang University College of PharmacyChung-Ang University College of PharmacyRutgers, The State University of New Jersey School of PharmacyChung-Ang University College of PharmacyAbstract Background Medications influencing the risk of fall-related injuries (FRIs) in older adults have been inconsistent in previous guidelines. This study employed case–control design to assess the association between FRIs and medications, and an additional case-crossover design was conducted to examine the consistency of the associations and the transient effects of the medications on FRIs. Methods This study was conducted using a national claims database (2002–2015) in Korea. Older adults (≥ 65 years) who had their first FRI between 2007 and 2015 were matched with non-cases in 1:2 ratio. Drug exposure was examined for 60 days prior to the date of the first FRI (index date) in the case–control design. The hazard period (1–60 days) and two control periods (121–180 and 181–240 days prior to the index date) were investigated in the case-crossover design. The risk of FRIs with 32 medications was examined using conditional logistic regression after adjusting for other medications that were significant in the univariate analysis. In the case-crossover study, the same conditional model was applied. Results In the case–control design, the five medications associated with the highest risk of FRIs were muscle relaxants (adjusted odd ratio(AOR) = 1.35, 95% confidence interval (CI) = 1.31–1.39), anti-Parkinson agents (AOR = 1.30, 95%CI = 1.19–1.40), opioids (AOR = 1.23, 95%CI = 1.19–1.27), antiepileptics (AOR = 1.19, 95%CI = 1.12–1.26), and antipsychotics (AOR = 1.16, 95%CI = 1.06–1.27). In the case-crossover design, the five medications associated with the highest risk of FRIs were angiotensin II antagonists (AOR = 1.87, 95%CI = 1.77–1.97), antipsychotics (AOR = 1.63, 95%CI = 1.42–1.83), anti-Parkinson agents (AOR = 1.58, 95%CI = 1.32–1.85), muscle relaxants (AOR = 1.42, 95%CI = 1.35–1.48), and opioids (AOR = 1.35, 95%CI = 1.30–1.39). Conclusions Anti-Parkinson agents, opioids, antiepileptics, antipsychotics, antidepressants, hypnotics and sedatives, anxiolytics, muscle relaxants, and NSAIDs/antirheumatic agents increased the risk of FRIs in both designs among older adults. Medications with a significant risk only in the case-crossover analysis, such as antithrombotic agents, calcium channel blockers, angiotensin II antagonists, lipid modifying agents, and benign prostatic hypertrophy agents, may have transient effects on FRIs at the time of initiation. Corticosteroids, which were only associated with risk of FRIs in the case–control analysis, had more of cumulative than transient effects on FRIs.https://doi.org/10.1186/s12877-023-04138-zFall-related injuriesFall risk-increasing drugsClaims databaseCase–controlCase-crossover
spellingShingle Yu-Seon Jung
David Suh
Eunyoung Kim
Hee-Deok Park
Dong-Churl Suh
Sun-Young Jung
Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
BMC Geriatrics
Fall-related injuries
Fall risk-increasing drugs
Claims database
Case–control
Case-crossover
title Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
title_full Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
title_fullStr Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
title_full_unstemmed Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
title_short Medications influencing the risk of fall-related injuries in older adults: case–control and case-crossover design studies
title_sort medications influencing the risk of fall related injuries in older adults case control and case crossover design studies
topic Fall-related injuries
Fall risk-increasing drugs
Claims database
Case–control
Case-crossover
url https://doi.org/10.1186/s12877-023-04138-z
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