Antihypertensive Medication Adherence and Cardiovascular Outcomes in Patients With Cancer: A Nationwide Population-Based Cohort Study

Mi Hyang Jung, So Young Lee, Jong Chan Youn, Woo Baek Chung, Sang Hyun Ihm, Dongwoo Kang, Dae Sung Kyoung, Hae Ok Jung, Kiyuk Chang, Ho Joong Youn, Hokyou Lee, Danbee Kang, Juhee Cho, Hidehiro Kaneko, Hyeon Chang Kim

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

BACKGROUND: Hypertension is an important cause of morbidity, which predisposes patients to major cardiovascular events and mortality. The aim of this study was to explore the association between adherence to antihypertensive medication and clinical outcomes in adult patients with cancer. METHODS AND RESULTS: Using the 2002 to 2013 Korean National Health Insurance Service– National Sample Cohort, we ex-tracted adult patients with cancer treated with antihypertensive medications. Based on the medication possession ratio value, participants were divided into 3 groups: good (medication possession ratio ≥0.8), moderate (0.5≤ medication possession ratio <0.8), and poor (medication possession ratio <0.5) adherence groups. The primary outcomes were overall and cardiovascular mortality. The secondary outcome was cardiovascular events requiring hospitalization due to major cardiovascular diseases. Among 19 246 patients with cancer with concomitant hypertension, 66.4% were in the nonadherence group (26.3% were moderate and 40.0% were poor adherence group). Over a median of 8.4 years of follow-up, 2752 deaths and 6057 cardiovascular events occurred. Compared with the good adherence group, the moderate and poor adherence groups had a 1.85-fold and 2.19-fold increased risk for overall mortality, and 1.72-fold and 1.71-fold elevated risk for cardiovascular mortality, respec-tively, after adjustment for possible confounders. Furthermore, the moderate and poor adherence groups had a 1.33-fold and 1.34-fold elevated risk of new-onset cardiovascular events, respectively. These trends were consistent across cardiovascular event subtypes. CONCLUSIONS: Nonadherence to antihypertensive medication was common in patients with cancer and was associated with worse clinical outcomes in adult patients with cancer with hypertension. More attention should be paid to improving adherence to antihypertensive medication among patients with cancer.

Original languageEnglish
Article numbere029362
JournalJournal of the American Heart Association
Volume12
Issue number14
DOIs
StatePublished - 2023

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea grant funded by the Ministry of Science and Information and Communication Technologies (NRF-2021R1F1A1063430), by the Catholic Medical Center Research Foundation (2022), by the Research Foundation of Internal Medicine, The Catholic University of Korea, by the Korean Society of Cardiovascular Disease Prevention, and by a grant of the Korea Health

Funding Information:
Technology R&D Project through the Korea Health Industry Development Institute, funded by the Ministry of Health and Welfare, Republic of Korea (grant number: HI19C1211). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the article.

Publisher Copyright:
© 2023 The Authors.

Keywords

  • adherence
  • cancer
  • cardiovascular disease
  • hypertension
  • survivorship

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