Serum High-Sensitivity Cardiac Troponin T as an Independent Predictor for Incident Coronary Heart Disease in the Japanese General Population: The Circulatory Risk in Communities Study (CIRCS)

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  • Imano Hironori
    Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine Department of Public Health, Kindai University Faculty of Medicine Osaka Center for Cancer and Cardiovascular Disease Prevention
  • Yamagishi Kazumasa
    Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba Ibaraki Western Medical Center
  • Ohira Tetsuya
    Department of Epidemiology, Fukushima Medical University School of Medicine
  • Kitamura Akihiko
    Yao Public Health Center, Yao City Office
  • Okada Takeo
    Osaka Center for Cancer and Cardiovascular Disease Prevention
  • Muraki Isao
    Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
  • Umesawa Mitsumasa
    Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba Department of Public Health, Dokkyo Medical University School of Medicine
  • Sankai Tomoko
    Department of Community Health and Public Health Nursing, Faculty of Medicine, University of Tsukuba
  • Kiyama Masahiko
    Osaka Center for Cancer and Cardiovascular Disease Prevention
  • Iso Hiroyasu
    Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine Institute for Global Health Policy Research (iGHP), National Center for Global Health and Medicine

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<p> Aims: Epidemiological evidence is extremely limited about high-sensitivity cardiac troponin T (hs-cTnT) and future coronary heart disease (CHD) events for the general population in countries with low mortality from CHD. Therefore, we investigated the association between hs-cTnT levels and the risk of incident CHD using a nested case–control study in a large Japanese cohort study.</p><p>Methods: The participants were residents of four Japanese communities in the Circulatory Risk in Communities Study (CIRCS). We obtained 120 cases (81 men and 39 women, aged 38–86 years at baseline) of first incident CHD and 240 controls matched by age, sex, communities, and blood sampling term. Serum hs-cTnT levels were measured using an electrochemiluminescence immunoassay with stored sera collected between 2001 and 2011. The median period between sampling at survey and CHD incidence was 2.0 (interquartile range, 0.9–3.7) years. After adjusting for conventional risk factors, the multivariable odds ratios (ORs) of CHD were calculated using conditional logistic regression analyses.</p><p>Results: hs-cTnT ranged from ≤ 3 (assay detection limit) to 155 ng/L. Compared with the lowest quartile of hs-cTnT, multivariable ORs (95% confidence intervals) of CHD for the second, third, and highest quartiles were 1.30 (0.57–2.95), 2.48 (1.09–5.64), and 3.01 (1.27–7.12), respectively. Similar associations were observed after adjusting for estimated glomerular filtration, or after excluding matched groups, including people with chronic kidney disease.</p><p> Conclusion: Serum hs-cTnT could predict CHD in the Japanese general population. These findings implicate a benefit from monitoring hs-cTnT to predict CHD even among populations in countries with low mortality from CHD.</p>

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