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Table 8 Comparison of laboratory data among patients with different Ct values in those who were tested using the Abbott rt-PCR machine

From: Initial viral cycle threshold values in patients with COVID-19 and their clinical significance

  Abbot N Mean Std. deviation 95% CI for Mean P-value
Lower Upper
WBC Low Ct value 99 6.15 3.27 5.31 7.17 0.06
Medium Ct value 18 7.77 4.02 5.26 10.03
PMN Low Ct value 100 4.44 3.01 3.64 5.24 0.22
Medium Ct value 19 5.38 3.36 3.49 7.12
Lymph% Low Ct value 100 20.97 12.92 16.68 23.93 0.59
Medium Ct value 19 19.28 8.87 15.39 26.04
Lymph Low Ct value 99 1.47 2.74 0.99 1.38 0.98
Medium Ct value 18 1.49 0.75 0.93 2.03
Plat Low Ct value 100 228.37 129.15 185.64 261.57 0.71
Medium Ct value 19 240.16 113.25 168.35 339.47
ALT Low Ct value 65 47.58 40.88 37.56 61.52 0.13
Medium Ct value 14 88.66 203.61 − 54.77 255.1
AST Low Ct value 95 45.56 33.71 35.24 54.35 0.047
Medium Ct value 18 86.61 187.18 − 50.58 271.51
LDH Low Ct value 98 321.60 138.82 281.44 360.75 0.55
Medium Ct value 16 345.77 214.54 179.03 473.33
D-dimer Low Ct value 96 1.55 2.18 0.94 2.36 0.014*
Medium Ct value 17 3.58 6.13 0.53 5.81
Ferritin Low Ct value 96 633.65 773.43 352.7 630.71 0.88
Medium Ct value 17 664.88 756.33 123.41 1216.28
CRP Low Ct value 97 79.28 69.37 58.39 96.72 0.26
Medium Ct value 16 101.21 83.14 38.13 155.49
Procalcitonin Low Ct value 96 0.79 2.96 − 0.06 2.05 0.51
Medium Ct value 17 0.31 0.35 0.15 0.68