Laboratory Medicine ›› 2017, Vol. 32 ›› Issue (5): 367-369.DOI: 10.3969/j.issn.1673-8640.2017.05.004

• Orginal Article • Previous Articles     Next Articles

Receiver operating characteristic curve for free fatty acid determination in patients with coronary heart disease

GU Keping, WANG Yaping, YU Wei, ZHANG Min, GONG Mengjiao, JIANG Yuhai   

  1. Department of Clinical Laboratory,Wuxi Second People's Hospital,Wuxi 214002,Jiangsu,China
  • Received:2016-10-27 Online:2017-05-20 Published:2017-06-06

Abstract:

Objective To investigate the correlation of free fatty acid (FFA)with coronary heart disease (CHD). Methodse A total of 110 patients with CHD,71 disease controls and 50 healthy subjects(healthy control group) were enrolled. Serum FFA,homocysteine(Hcy),triglyceride(TG),total cholesterol(TC) and lipoprotein(a)[Lp(a)] levels were determined. Receiver operating characteristic(ROC)curve was used to evaluate the diagnosis performance of each index. Results FFA,Hcy,TG and Lp(a)levels in CHD group were higher than those in healthy control group(P<0.01) and disease control group(P<0.05,P<0.01),those in disease control group were higher than those in healthy control group (P<0.01). TC had no statistical significance among the 3 groups (P>0.05). The optimal cut-off value of FFA for the diagnosis of CHD was 596.20 μmol/L,the area under ROC curve was 0.924,the sensitivity was 85.5%,and the specificity was 90.1%. The diagnosis performance of FFA was superior to those of Hcy,TG,Lp(a) and TC. Conclusions FFA plays a role in the diagnosis of CHD.

Key words: Free fatty acid, Coronary heart disease, Homocysteine, Blood lipid

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