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Proton-Pump Inhibitor Use and the Risk of First-Time Ischemic Stroke in the General Population: A Nationwide Population-Based Study

The American Journal of Gastroenterology volume 112, pages 10841093 (2017) | Download Citation

Abstract

Objectives:

An increased risk of adverse cardiovascular events was reported for concomitant use of proton-pump inhibitors (PPIs) in patients taking antiplatelet agents. The present study aimed at determining whether PPI use alone could be associated with first-time ischemic stroke.

Methods:

This was a retrospective nationwide study using database from Taiwan National Health Insurance and involved subjects aged ≥20 years. In propensity score-matched analysis, patients with current PPI use were compared with propensity score-matched PPI non-use controls at a 1:1 ratio. Patients with prior stroke or hospitalization before the index date were excluded. The primary outcome measure was hospitalization with a primary diagnosis of ischemic stroke during 120-day follow-up. A parallel analysis adopting a nested case–control design was carried out. Patients hospitalized for a first-time ischemic stroke were identified and were compared with matched controls using conditional logistic regression analyses focusing on PPI use before the index date.

Results:

The propensity score-matched analysis included 198,148 PPI treatment courses and control periods without PPI use. PPI use was associated with a higher risk of hospitalization due to ischemic stroke with a hazard ratio of 1.36 (95% confidence interval (CI) 1.14–1.620, P=0.001). Based on subgroup analysis, patients aged <60 years were more susceptible (P=0.043 for interaction), whereas gender, history myocardial infarction, diabetes mellitus, hypertension, use of antiplatelet agents of non-steroidal anti-inflammatory drugs, or type of PPIs had no effect on the risk. In the nested case–control analysis, 15,378 patients hospitalized owing to ischemic stroke were identified and were compared with 15,378 matched controls. An association between PPI use and increased cerebrovascular risks was identified, and the adjusted odds ratios for PPI use were 1.77 (95% CI 1.45–2.18, P<0.001) within 30 days, 1.65 (95% CI 1.31–2.08, P<0.001) between 31 and 90 days, and 1.28 (95% CI 1.03–1.59, P=0.025) between 91 and 180 days before the onset of first-time ischemic stroke.

Conclusions:

PPI use is associated with an increased risk of first-time ischemic stroke in the general population, and the risk is independent of antiplatelet agents. However, caution should be exercised when considering its clinical relevance as the magnitude of association was modest and a cause-and-effect relationship remained to be established.

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Acknowledgements

We thank our families and colleagues for their support.

Author information

Author notes

    • Yen-Feng Wang
    •  & Yung-Tai Chen

    These authors contributed equally to this work

Affiliations

  1. Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan

    • Yen-Feng Wang
    • , Yung-Tai Chen
    • , Jiing-Chyuan Luo
    • , Tzeng-Ji Chen
    • , Jaw-Ching Wu
    •  & Shuu-Jiun Wang
  2. Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan

    • Yen-Feng Wang
    •  & Shuu-Jiun Wang
  3. Department of Medicine, Taipei City Hospital, Heping Fuyou Branch, Taipei, Taiwan

    • Yung-Tai Chen
  4. Division of Gastroenterology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan

    • Jiing-Chyuan Luo
    •  & Jaw-Ching Wu

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Competing interests

Guarantor of the article: Shuu-Jiun Wang, MD.

Specific author contributions: Conception, study design, data analysis: Yen-Feng Wang, Yung-Tai Chen, and Shuu-Jiun Wang. Initiation of the draft: Yen-Feng Wang and Yung-Tai Chen. Critical revision of the manuscript: Yen-Feng Wang, Yung-Tai Chen, Jiing-Chyuan Luo, Tzeng-Ji Chen, Jaw-Ching Wu, and Shuu-Jiun Wang. All authors participated in the revision and completion of the manuscript.

Financial support: This study was supported in part by grants from the Taiwan Ministry of Education, Aim for the Top University Plan; Brain Research Center, National Yang-Ming University; Taipei Veterans General Hospital (V100E6-001, V101E7-003, V102E9-001, V103E9-006, V104E9-001, V105E9-001-MY2-1); Ministry of Science and Technology of Taiwan (MOST 104-2314-B-010-015-MY2, and MOST 103-2321-B-010-017-); Ministry of Science and Technology support for the Center for Dynamical Biomarkers and Translational Medicine, National Central University, Taiwan (MOST 103-2911-I-008-001); National Center for Genome Medicine of the National Core Facility Program for Biotechnology, Ministry of Science and Technology, Taiwan; Institute of Biomedical Sciences, Academia Sinica (Grant No. IBMS-CRC103-P04, 104-2314-B-001-003-); Taiwan Han Chinese Cell and Genome Bank of Academia Sinica; Translational Resource Center for Genomic Medicine of National Research Program for Biopharmaceuticals (NRPB), Taiwan; and Ministry of Health and Welfare, Taiwan (MOHW 103-TDU-B-211-113-003, MOHW 104-TDU-B-211-113-003, MOHW 105-TDU-B-211-113-003).

Potential competing interest: None.

Corresponding author

Correspondence to Shuu-Jiun Wang.

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DOI

https://doi.org/10.1038/ajg.2017.101

SUPPLEMENTARY MATERIAL is linked to the online version of the paper at http://www.nature.com/ajg