The effects of reduced copayments on discontinuation and adherence failure to statin medication in Australia

Rachel J. Knott, Dennis Petrie, Emma L Heeley, John P Chalmers, Philip M. Clarke

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

This paper assesses whether the concession card, which offers discounted out-of-pocket costs for prescription medicines in Australia, affects discontinuation and adherence to statin therapy. The analysis uses data from the Australian Hypertension and Absolute Risk Study (AusHEART), which involves patients aged 55 years and over who visited a GP between April and June 2008. Socioeconomic and clinical information was collected and linked to administrative data on pharmaceutical use. Patients without a concession card were 63 more likely (hazard ratio (HR) 95 confidence interval (CI): 1.14-2.33) to discontinue and 60 (odds ratio (OR) CI: 1.04-2.44) more likely to fail to adhere to therapy compared to concessional patients. Smokers were 2.12 (HR CI: 1.39-3.22) times more likely to discontinue use and 2.23 (OR CI: 1.35-3.71) times more likely to fail to adhere compared to non-smokers. Patients who had recently initiated statin medication were also 2.28 (HR CI: 1.22-4.28) times more likely to discontinue use. In conclusion, higher copayments act as a disincentive for persistent and adherent use of statin medication.
Original languageEnglish
Pages (from-to)620 - 627
Number of pages8
JournalHealth Policy
Volume119
Issue number5
DOIs
Publication statusPublished - 2015

Keywords

  • Co-payments
  • Statins
  • Adherence
  • Discontinuation
  • Australian pharmaceutical benefits schemea

Cite this

Knott, Rachel J. ; Petrie, Dennis ; Heeley, Emma L ; Chalmers, John P ; Clarke, Philip M. / The effects of reduced copayments on discontinuation and adherence failure to statin medication in Australia. In: Health Policy. 2015 ; Vol. 119, No. 5. pp. 620 - 627.
@article{e8e78272e31b49368faf7d0b2aca1bcb,
title = "The effects of reduced copayments on discontinuation and adherence failure to statin medication in Australia",
abstract = "This paper assesses whether the concession card, which offers discounted out-of-pocket costs for prescription medicines in Australia, affects discontinuation and adherence to statin therapy. The analysis uses data from the Australian Hypertension and Absolute Risk Study (AusHEART), which involves patients aged 55 years and over who visited a GP between April and June 2008. Socioeconomic and clinical information was collected and linked to administrative data on pharmaceutical use. Patients without a concession card were 63 more likely (hazard ratio (HR) 95 confidence interval (CI): 1.14-2.33) to discontinue and 60 (odds ratio (OR) CI: 1.04-2.44) more likely to fail to adhere to therapy compared to concessional patients. Smokers were 2.12 (HR CI: 1.39-3.22) times more likely to discontinue use and 2.23 (OR CI: 1.35-3.71) times more likely to fail to adhere compared to non-smokers. Patients who had recently initiated statin medication were also 2.28 (HR CI: 1.22-4.28) times more likely to discontinue use. In conclusion, higher copayments act as a disincentive for persistent and adherent use of statin medication.",
keywords = "Co-payments, Statins, Adherence, Discontinuation, Australian pharmaceutical benefits schemea",
author = "Knott, {Rachel J.} and Dennis Petrie and Heeley, {Emma L} and Chalmers, {John P} and Clarke, {Philip M.}",
year = "2015",
doi = "10.1016/j.healthpol.2015.01.003",
language = "English",
volume = "119",
pages = "620 -- 627",
journal = "Health Policy",
issn = "0168-8510",
publisher = "Elsevier",
number = "5",

}

The effects of reduced copayments on discontinuation and adherence failure to statin medication in Australia. / Knott, Rachel J.; Petrie, Dennis; Heeley, Emma L; Chalmers, John P; Clarke, Philip M.

In: Health Policy, Vol. 119, No. 5, 2015, p. 620 - 627.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The effects of reduced copayments on discontinuation and adherence failure to statin medication in Australia

AU - Knott, Rachel J.

AU - Petrie, Dennis

AU - Heeley, Emma L

AU - Chalmers, John P

AU - Clarke, Philip M.

PY - 2015

Y1 - 2015

N2 - This paper assesses whether the concession card, which offers discounted out-of-pocket costs for prescription medicines in Australia, affects discontinuation and adherence to statin therapy. The analysis uses data from the Australian Hypertension and Absolute Risk Study (AusHEART), which involves patients aged 55 years and over who visited a GP between April and June 2008. Socioeconomic and clinical information was collected and linked to administrative data on pharmaceutical use. Patients without a concession card were 63 more likely (hazard ratio (HR) 95 confidence interval (CI): 1.14-2.33) to discontinue and 60 (odds ratio (OR) CI: 1.04-2.44) more likely to fail to adhere to therapy compared to concessional patients. Smokers were 2.12 (HR CI: 1.39-3.22) times more likely to discontinue use and 2.23 (OR CI: 1.35-3.71) times more likely to fail to adhere compared to non-smokers. Patients who had recently initiated statin medication were also 2.28 (HR CI: 1.22-4.28) times more likely to discontinue use. In conclusion, higher copayments act as a disincentive for persistent and adherent use of statin medication.

AB - This paper assesses whether the concession card, which offers discounted out-of-pocket costs for prescription medicines in Australia, affects discontinuation and adherence to statin therapy. The analysis uses data from the Australian Hypertension and Absolute Risk Study (AusHEART), which involves patients aged 55 years and over who visited a GP between April and June 2008. Socioeconomic and clinical information was collected and linked to administrative data on pharmaceutical use. Patients without a concession card were 63 more likely (hazard ratio (HR) 95 confidence interval (CI): 1.14-2.33) to discontinue and 60 (odds ratio (OR) CI: 1.04-2.44) more likely to fail to adhere to therapy compared to concessional patients. Smokers were 2.12 (HR CI: 1.39-3.22) times more likely to discontinue use and 2.23 (OR CI: 1.35-3.71) times more likely to fail to adhere compared to non-smokers. Patients who had recently initiated statin medication were also 2.28 (HR CI: 1.22-4.28) times more likely to discontinue use. In conclusion, higher copayments act as a disincentive for persistent and adherent use of statin medication.

KW - Co-payments

KW - Statins

KW - Adherence

KW - Discontinuation

KW - Australian pharmaceutical benefits schemea

UR - https://www-scopus-com.ezproxy.lib.monash.edu.au/record/display.uri?eid=2-s2.0-84933679690&origin=resultslist&sort=plf-f&src=s&st1=The+effects+of+reduced+copayments+on+discontinuation+and+adherence+failure+to+statin+medication+in+Australia&st2=&sid=54F58FB542817C285DD36F2FE1A7C509.wsnAw8kcdt7IPYLO0V48gA%3a10&sot=b&sdt=b&sl=123&s=TITLE-ABS-KEY%28The+effects+of+reduced+copayments+on+discontinuation+and+adherence+failure+to+statin+medication+in+Australia%29&relpos=0&citeCnt=4&searchTerm=

U2 - 10.1016/j.healthpol.2015.01.003

DO - 10.1016/j.healthpol.2015.01.003

M3 - Article

VL - 119

SP - 620

EP - 627

JO - Health Policy

JF - Health Policy

SN - 0168-8510

IS - 5

ER -