冠動脈カルシウムによる心臓病の予測
Coronary Calcium as a Predictor of Coronary Events in Four Racial or Ethnic Groups4つの人種および民族グループにおける冠動脈イベントの予測材料としての冠動脈カルシウムRobert Detrano, M.D., Ph.D., Alan D. Guerci, M.D., J. Jeffrey Carr, M.D., M.S.C.E., Diane E. Bild, M.D., M.P.H., Gregory Burke, M.D., Ph.D., Aaron R. Folsom, M.D., Kiang Liu, Ph.D., Steven Shea, M.D., Moyses Szklo, M.D., Dr.P.H., David A. Bluemke, M.D., Ph.D., Daniel H. O'Leary, M.D., Russell Tracy, Ph.D., Karol Watson, M.D., Ph.D., Nathan D. Wong, Ph.D., and Richard A. Kronmal, Ph.D. ABSTRACT 概要Background In white populations, computed tomographic measurements of coronary-artery calcium predict coronary heart disease independently of traditional coronary risk factors. However, it is not known whether coronary-artery calcium predicts coronary heart disease in other racial or ethnic groups. 背景 白人では、冠動脈のカルシウムのコンピューター・トモグラフィー(断層撮影)測定によって冠状動脈性心臓病を予測できる。従来の冠動脈危険因子とは無関係だ。しかし、冠動脈カルシウムが白人以外の人種や民族でも冠状動脈性心臓病を予測できるかどうかはわからない。Methods We collected data on risk factors and performed scanning for coronary calcium in a population-based sample of 6722 men and women, of whom 38.6% were white, 27.6% were black, 21.9% were Hispanic, and 11.9% were Chinese. The study subjects had no clinical cardiovascular disease at entry and were followed for a median of 3.8 years. 方法危険因子のデータを集めて、人口に基づいて6722名の男女の冠動脈カルシウムを精査した。サンプルの内訳は、38.6%が白人、27.6%が黒人、21.9%がヒスパニック、11.9%が中国人だった。被験者は被験時において臨床的心臓血管障害はなかった。その後平均して3.8年追跡調査した。Results There were 162 coronary events, of which 89 were major events (myocardial infarction or death from coronary heart disease). In comparison with participants with no coronary calcium, the adjusted risk of a coronary event was increased by a factor of 7.73 among participants with coronary calcium scores between 101 and 300 and by a factor of 9.67 among participants with scores above 300 (P