期刊
BMC CARDIOVASCULAR DISORDERS
卷 22, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12872-022-02619-4
关键词
Coronary artery disease; International normalized-ratio; All-cause mortality
资金
- National Key Research and Development Program of China [2016YFC1301202]
- Natural Science Foundation of Guangdong Province General Project [2020A1515010940]
This study suggests that high levels of PT-INR are associated with an increased risk of long-term mortality in patients with coronary artery disease.
Background The association between prothrombin time-international normalized ratio (PT-INR) and long-term prognosis among patients with coronary artery disease (CAD) without atrial fibrillation or anticoagulant therapy was still unclear. We analyzed the association of PT-INR levels and long-term mortality in a large cohort of CAD patients without atrial fibrillation or using of anticoagulant drugs. Methods We obtained data from 44,662 patients who were diagnosed with CAD and had follow-up information from January 2008 to December 2018. The patients were divided into 4 groups (Quartile 1: PT-INR <= 0.96; Quartile2: 0.96 < PT-INR <= 1.01; Quartile3: 1.01 < PT-INR <= 1.06; Quartile4: PT-INR > 1.06). The main endpoint was long-term all-cause death. Kaplan-Meier curve analysis and Cox proportional hazards models were used to investigate the association between quartiles of PT-INR levels and long-term all-cause mortality. Results During a median follow-up of 5.25 years, 5613 (12.57%) patients died. We observed a non-linear shaped association between PT-INR levels and long-term all-cause mortality. Patients in high PT-INR level (Quartile4: PT-INR > 1.06) showed a significantly higher long-term mortality than other groups (Quartile2 or 3 or 4), (Compared with Quartile 1, Quartile 2 [0.96 < PT-INR <= 1.01], aHR = 1.00, 95% CI 0.91-1.00, P = 0.99; Quartile 3 [1.01 < PT-INR <= 1.06], aHR = 1.10, 95% CI 1.01-1.20, P = 0.03; Quartile 4 [PT-INR > 1.06], aHR = 1.33, 95% CI 1.22-1.45, P < 0.05). Conclusions Our study demonstrates high levels of PT-INR were associated with an increased risk of all-cause mortality.
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