Figure 2.

The Cycle threshold values of patients with COVID-19.

(A): Chronological changes in Ct values detected in 407 oropharyngeal swabs obtained from 86 patients after hospital admission. The Ct value is considered to be inversely correlated to viral RNA copy number and a value below 40 means the viral RNA is undetectable.

(B): Comparison of initial viral load (the first positive Ct value after admission) between patients with and without neurosensory dysfunction. ND, neurosensory dysfunction.

(C): Comparison of initial viral load between age groups (6–39 vs. 40–57 years old).

(D): Comparison of initial viral load between male and female patients.

(E): Comparison of initial viral load between patients with and without comorbidity.

Statistical tests: Spearman’s correlation test (A) and Mann–Whitney U test (B–E).