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Impact of ezetimibe coadministered with statins on cardiovascular events following acute coronary syndrome: a 3-year population-based retrospective cohort study in Taiwan.
Clin Ther. 2011 Sep; 33(9):1120-31.CT

Abstract

BACKGROUND

Conflicting results using the combination of ezetimibe and statins to reduce the risk of cardiovascular events in patients with acute coronary syndrome (ACS) have been reported.

OBJECTIVE

The aim of this work was to assess the effectiveness of ezetimibe coadministered with statins in reducing cardiovascular events in patients with ACS.

METHODS

A retrospective cohort study of patients discharged after hospitalization with ACS was conducted from January 1, 2006, to December 31, 2007, and included those who were prescribed statins alone (n = 37,753) and those who received ezetimibe plus statins (n = 1001) within 365 days after the hospitalization, based on patient data obtained from the National Health Insurance Research Database (NHIRD) in Taiwan. The propensity score method was used to identify a 1:1 matched cohort (n = 2002). Risk of rehospitalization for ACS was analyzed by a multivariable Cox proportional hazards regression model.

RESULTS

The crude event rate of rehospitalization due to ACS in the original cohort was 13.4 per 100 person-years (268 events) in the combination group and 22.6 per 100 person-years (12,724 events) in the statins-alone group (adjusted hazard ratio [HR] 0.69; 95% CI, 0.62-0.78). The crude event rates of rehospitalization due to ACS in the matched cohort were 13.4 and 20.0 per 100 person-years in the combination group and statins-alone group, respectively (HR 0.62; 95% CI, 0.53-0.73). Compared with statins alone, the adjusted HRs for rehospitalization for percutaneous transluminal coronary angioplasty without stent, with stent, and revascularization for the combination group in the matched cohort were 0.61 (0.50-0.75), 0.62 (0.48-0.81), and 0.62 (0.51-0.76), respectively.

CONCLUSIONS

Based on the data of Taiwan's NHIRD, our findings suggest that patients with ACS on ezetimibe combined with statins had a significantly lower risk of rehospitalization due to ACS, percutaneous transluminal coronary angioplasty, and revascularization than those on statins alone. The generalization of the results is limited because of using claims data of a specific population as the data source.

Authors+Show Affiliations

School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21872930

Citation

Lin, Chen-Fang, et al. "Impact of Ezetimibe Coadministered With Statins On Cardiovascular Events Following Acute Coronary Syndrome: a 3-year Population-based Retrospective Cohort Study in Taiwan." Clinical Therapeutics, vol. 33, no. 9, 2011, pp. 1120-31.
Lin CF, Gau CS, Wu FL, et al. Impact of ezetimibe coadministered with statins on cardiovascular events following acute coronary syndrome: a 3-year population-based retrospective cohort study in Taiwan. Clin Ther. 2011;33(9):1120-31.
Lin, C. F., Gau, C. S., Wu, F. L., Hsiao, F. Y., Bai, C. H., & Shen, L. J. (2011). Impact of ezetimibe coadministered with statins on cardiovascular events following acute coronary syndrome: a 3-year population-based retrospective cohort study in Taiwan. Clinical Therapeutics, 33(9), 1120-31. https://doi.org/10.1016/j.clinthera.2011.08.002
Lin CF, et al. Impact of Ezetimibe Coadministered With Statins On Cardiovascular Events Following Acute Coronary Syndrome: a 3-year Population-based Retrospective Cohort Study in Taiwan. Clin Ther. 2011;33(9):1120-31. PubMed PMID: 21872930.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of ezetimibe coadministered with statins on cardiovascular events following acute coronary syndrome: a 3-year population-based retrospective cohort study in Taiwan. AU - Lin,Chen-Fang, AU - Gau,Churn-Shiouh, AU - Wu,Fe-Lin Lin, AU - Hsiao,Fei-Yuan, AU - Bai,Chyi-Huey, AU - Shen,Li-Jiuan, Y1 - 2011/08/27/ PY - 2011/06/21/received PY - 2011/08/04/revised PY - 2011/08/05/accepted PY - 2011/8/30/entrez PY - 2011/8/30/pubmed PY - 2012/2/14/medline SP - 1120 EP - 31 JF - Clinical therapeutics JO - Clin Ther VL - 33 IS - 9 N2 - BACKGROUND: Conflicting results using the combination of ezetimibe and statins to reduce the risk of cardiovascular events in patients with acute coronary syndrome (ACS) have been reported. OBJECTIVE: The aim of this work was to assess the effectiveness of ezetimibe coadministered with statins in reducing cardiovascular events in patients with ACS. METHODS: A retrospective cohort study of patients discharged after hospitalization with ACS was conducted from January 1, 2006, to December 31, 2007, and included those who were prescribed statins alone (n = 37,753) and those who received ezetimibe plus statins (n = 1001) within 365 days after the hospitalization, based on patient data obtained from the National Health Insurance Research Database (NHIRD) in Taiwan. The propensity score method was used to identify a 1:1 matched cohort (n = 2002). Risk of rehospitalization for ACS was analyzed by a multivariable Cox proportional hazards regression model. RESULTS: The crude event rate of rehospitalization due to ACS in the original cohort was 13.4 per 100 person-years (268 events) in the combination group and 22.6 per 100 person-years (12,724 events) in the statins-alone group (adjusted hazard ratio [HR] 0.69; 95% CI, 0.62-0.78). The crude event rates of rehospitalization due to ACS in the matched cohort were 13.4 and 20.0 per 100 person-years in the combination group and statins-alone group, respectively (HR 0.62; 95% CI, 0.53-0.73). Compared with statins alone, the adjusted HRs for rehospitalization for percutaneous transluminal coronary angioplasty without stent, with stent, and revascularization for the combination group in the matched cohort were 0.61 (0.50-0.75), 0.62 (0.48-0.81), and 0.62 (0.51-0.76), respectively. CONCLUSIONS: Based on the data of Taiwan's NHIRD, our findings suggest that patients with ACS on ezetimibe combined with statins had a significantly lower risk of rehospitalization due to ACS, percutaneous transluminal coronary angioplasty, and revascularization than those on statins alone. The generalization of the results is limited because of using claims data of a specific population as the data source. SN - 1879-114X UR - https://www.unboundmedicine.com/medline/citation/21872930/Impact_of_ezetimibe_coadministered_with_statins_on_cardiovascular_events_following_acute_coronary_syndrome:_a_3_year_population_based_retrospective_cohort_study_in_Taiwan_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0149-2918(11)00540-6 DB - PRIME DP - Unbound Medicine ER -