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Trajectories of Benzodiazepine Use among Older Adults from a Concordance-with-Guidelines Perspective: A Nationwide Cohort Study.
Drugs & Aging 2023 August 9
BACKGROUND AND OBJECTIVE: Benzodiazepines (including zolpidem and zopiclone) are often associated with higher-than-recommended intake and durations of use, especially in older adults. The objective of this study was to characterize trajectories of benzodiazepine use according to recommended patterns in older adults, and to assess predictors of the risk of developing each of these trajectories.
METHODS: Using the French Health Insurance database, we constituted a cohort of adults aged ≥ 65 years who initiated benzodiazepines in 2007 and were followed for up to 8 years. Concordance with benzodiazepine use guidelines was assessed on a quarterly basis according to a "concordance-with-guideline score" with values 1-5. Group-based trajectory modeling was then applied as implemented in the Proc Traj procedure in SAS to define guideline-concordant trajectories based on seven baseline patient-centered characteristics: sex, complementary health insurance coverage, treated alcohol and tobacco use disorder, polypharmacy, hospital stay, and registered chronic diseases.
RESULTS: Among 5080 new users (64.1% women, median age 74 years), six trajectories of benzodiazepine use were identified. Three, representing 70% of users, were concordant with guidelines, whereas three implied non-concordant benzodiazepine use for part or all of the benzodiazepine use follow-up. Polymedicated patients were more prone to develop chronic non-guideline-concordant initially guideline-concordant use, whereas those with a history of long-term disease and hospitalization were more likely to develop chronic non-guideline-concordant use. The number of prescribers during the first quarter, number of daily defined doses, use of loperamide, and use of psychostimulants were associated with a higher risk of developing an initial and persistent non-guideline-concordant use. Treatment initiation by a psychiatrist, initial use of World Health Organization (WHO) step-2 opioids and non-benzodiazepine anxiolytics or sedatives were associated with a higher risk of late non-guideline-concordant use.
CONCLUSIONS: Concordance with guidelines varied over time during benzodiazepine use in older adults. A third of these adults will hypothetically follow one of the identified non-guideline-concordant trajectories, consisting of initial and/or late non-guideline concordance. This was associated with modifiable and nonmodifiable factors that clinicians should be aware of for tailoring the monitoring of patients.
METHODS: Using the French Health Insurance database, we constituted a cohort of adults aged ≥ 65 years who initiated benzodiazepines in 2007 and were followed for up to 8 years. Concordance with benzodiazepine use guidelines was assessed on a quarterly basis according to a "concordance-with-guideline score" with values 1-5. Group-based trajectory modeling was then applied as implemented in the Proc Traj procedure in SAS to define guideline-concordant trajectories based on seven baseline patient-centered characteristics: sex, complementary health insurance coverage, treated alcohol and tobacco use disorder, polypharmacy, hospital stay, and registered chronic diseases.
RESULTS: Among 5080 new users (64.1% women, median age 74 years), six trajectories of benzodiazepine use were identified. Three, representing 70% of users, were concordant with guidelines, whereas three implied non-concordant benzodiazepine use for part or all of the benzodiazepine use follow-up. Polymedicated patients were more prone to develop chronic non-guideline-concordant initially guideline-concordant use, whereas those with a history of long-term disease and hospitalization were more likely to develop chronic non-guideline-concordant use. The number of prescribers during the first quarter, number of daily defined doses, use of loperamide, and use of psychostimulants were associated with a higher risk of developing an initial and persistent non-guideline-concordant use. Treatment initiation by a psychiatrist, initial use of World Health Organization (WHO) step-2 opioids and non-benzodiazepine anxiolytics or sedatives were associated with a higher risk of late non-guideline-concordant use.
CONCLUSIONS: Concordance with guidelines varied over time during benzodiazepine use in older adults. A third of these adults will hypothetically follow one of the identified non-guideline-concordant trajectories, consisting of initial and/or late non-guideline concordance. This was associated with modifiable and nonmodifiable factors that clinicians should be aware of for tailoring the monitoring of patients.
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