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Table 9 Comparison of laboratory data among patients with different Ct values in those who were tested using the Roche rt-PCR machine

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

Variable Ct value N Mean Std. deviation 95% Confidence interval for mean P-value
Lower bound Upper bound
WBC range Low 40 5.23 2.50 4.43 6.03 0.13
Medium 38 6.72 3.88 5.44 7.99
High 9 5.79 2.67 3.74 7.84
PMN range Low 40 3.47 2.01 2.83 4.12 0.03*
Medium 39 4.69 3.21 3.65 5.73
High 9 8.42 13.45 − 1.91 18.76
Lymph% range Low 40 23.00 14.15 18.48 27.53 0.93
Medium 38 21.97 12.73 17.79 26.16
High 9 21.62 11.65 12.66 30.58
Lymph range Low 40 1.20 0.67 0.99 1.42 0.72
Medium 39 1.36 1.09 1.01 1.71
High 9 1.28 0.64 0.79 1.77
Plat range Low 40 215.69 86.29 188.10 243.29 0.61
Medium 39 236.83 98.59 204.87 268.79
High 9 227.76 106.47 145.91 309.60
ALT range Low 17 46.36 30.79 30.53 62.19 0.18
Medium 8 54.10 39.43 21.13 87.07
High 3 89.33 56.05 − 49.90 228.56
AST range Low 40 50.17 34.22 39.22 61.11 0.89
Medium 39 52.70 63.22 32.21 73.19
High 8 59.30 43.10 23.27 95.33
LDH range Low 39 304.99 148.97 256.70 353.28 0.08
Medium 39 385.71 171.43 330.14 441.28
High 8 357.95 114.86 261.92 453.97
D-dimer Low 39 1.18 1.69 0.63 1.73 0.2
Medium 39 4.37 11.66 0.59 8.15
High 9 1.59 2.43 − 0.28 3.47
Ferritin Low 39 476.51 642.60 268.20 684.82 0.16
Medium 39 923.46 1337.36 489.94 1356.98
High 8 720.24 651.14 175.87 1264.60
CRP Low 39 60.81 63.56 40.21 81.41 0.04*
Medium 37 99.25 79.10 72.87 125.62
High 8 53.08 62.04 1.21 104.94
Procalcitonin Low 38 1.25 6.88 − 1.01 3.51 0.63
Medium 37 3.61 17.56 − 2.25 9.46
High 9 0.14 0.12 0.05 0.23