Laboratory Medicine ›› 2023, Vol. 38 ›› Issue (11): 1075-1081.DOI: 10.3969/j.issn.1673-8640.2023.11.013

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Multicenter performance evaluation of a 7-microRNA test kit

HUANG Zhongqiang1, DAI Di2, HOU Tieying3, LIN Faquan4, LU Zhiming5, LIU Xiaoqi6, SHEN Minna7, WU Jie8, ZHANG Pingan9, ZHOU Jun10, XIAO Yanqun1(), WANG Hualiang1()   

  1. 1. Shanghai Center for Clinical Laboratory,Shanghai Institute of Experimental Medicine,Shanghai 200126,China
    2. Department of Clinical Laboratory,the First Affiliated Hospital of China Medical University,Shenyang 110001,Liaoning,China
    3. Department of Clinical Laboratory,Guangdong Provincial People's Hospital,Guangzhou 510030,Guangdong,China
    4. Department of Clinical Laboratory,the First Affiliated Hospital of Guangxi Medical University,Nanning 530021,Guangxi,China
    5. Department of Clinical Medicine and Laboratory,the Provincial Hospital of Shandong First Medical University,Jinan 250021,Shandong,China
    6. Medical Genetics Center,Sichuan Provincial People's Hospital,Chengdu 610031,Sichuan,China
    7. Department of Clinical Laboratory,Zhongshan Hospital,Fudan University,Shanghai 200032,China
    8. Department of Clinical Laboratory,Peking Union Medical College Hospital,Beijing 100140,China
    9. Department of Clinical Laboratory,the People's Hospital of Wuhan University,Wuhan 430060,Hubei,China
    10. Department of Clinical Laboratory,the Third Hospital of Naval Military Medical University,Shanghai 201805,China
  • Received:2022-03-05 Revised:2022-08-02 Online:2023-11-30 Published:2024-01-10

Abstract:

Objective To evaluate the determination performance of a 7-microRNA(miRNA) test kit. Methods A total of 10 laboratory centers used the same samples to evaluate the performance of the same batch of reagents during the same period through multicenter evaluation. The determination objects were miR-21,miR-26a,miR-27a,miR-122,miR-192,miR-223 and miR-801,with miR-1228 as the internal reference.The evaluation parameters included precision,consistency,determination limit and anti-interference capability. Results The intra-batch coefficient of variation(CV) and inter-batch CV of cycle threshold(Ct) values of the 10 laboratory centers for 8 miRNA were all <5.00% and <6.50%,respectively. The total consistency of 20 clinical plasma samples determined by the 10 laboratory centers was 100.00%(20/20). The determination rate of 50 copies/μL standard reference materials determined by the 10 laboratory centers was 100.00%(20/20). The interfering substances with the final concentration of 200 g/L hemoglobin,1 000 μmol/L bilirubin and 100 mmol/L triglyceride had no interference on the determination results. Conclusions The precision,consistency,determination limit and anti-interference capability of this kit are good,which can meet the different needs of regions,laboratories and determination systems. It has certain clinical application value.

Key words: MicroRNA, Performance verification, Multicenter evaluation

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