Journal of Laboratory Medicine and Quality Assurance

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Table. 4.

Table. 4.

Cut-off evaluation results of C50, C50±20%, C50±10% samples

No. of test setsTarget valueNo. of testsNo. of positivesNo. of negativesConfidence (%)
1C50402614-85.8
C50–20%04092.7
C50+20%40092.7
C50402020-85.8
C50–20%04092.7
C50+20%40092.7
C50402020-85.8
C50–20%04092.7
C50+20%40092.7
2C501004357-83.8
C50–20%29891.6
C50+20%98291.6
C501006139-66.9
C50–20%49667.7
C50+20%100098.9
C501004258-75.1
C50–20%29891.6
C50+20%97382.1
3C50402020-71
C50–10%04092.7
C50+10%39176.6
C50402020-25>
C50–10%33750>
C50+10%35550>
C50402020-25>
C50–10%53550>
C50+10%36450>
J Lab Med Qual Assur 2019;41:29-38 https://doi.org/10.15263/jlmqa.2019.41.1.29
© 2019 J Lab Med Qual Assur