Impact of Medicare prescription drug (Part D) coverage expansion on utilisation and financial burden of benzodiazepines among older adults: an interrupted time series analysis.

ABSTRACT:

Objective

Benzodiazepines were excluded from Medicare Part D coverage since its introduction in 2006. Part D expanded coverage for benzodiazepines in 2013. The objective was to examine the impact of Medicare Part D coverage expansion on the utilisation and financial burden of benzodiazepines in older adults.

Design

Interrupted time series with a control group.

Setting

Nationally representative sample.

Participants

53 150 468 users of benzodiazepines and 21 749 749 users of non-benzodiazepines (an alternative therapy) from the Medicare Current Beneficiary Survey between the pre-expansion (2006-2012) and post-expansion (2013-2017) periods.

Intervention

Medicare Part D coverage expansion on benzodiazepines.

Primary and secondary outcome measures

Annu

SUBMITTER: Li M 

PROVIDER: S-EPMC8679099 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature