Methylprednisolone accelerate chest computed tomography absorption in COVID-19: A three-centered retrospective case control study from China

Table 4 The results of severe acute respiratory syndrome coronavirus 2 RNA and chest computerized tomography absorbtion

Indicator		Control group	Corticosteroid group	Summation	χ2 or Hc value	P-value
SARS-CoV-2 RNA before medication	N	21	28	49	0.537	0.464a
	P	11	10	21
SARS-CoV-2 RNA after medication	N	30	37	67	0.023	0.879a
	P	2	1	3
CT absorption degree after medication	No absorption	13	0	13	41.681	< 0.001b
	Slightly absorption	15	4	19
	Obvious absorption	4	34	38

^aThere was no statistically difference in the negative conversion rate of severe acute respiratory syndrome coronavirus 2 nucleic acid between the two groups.

^bThere was significant difference in CT absorption degree between the two groups.

N: Negtive; P: Positive; CT: Computerized tomography; No absorption: No change in inflammatory range; Slightly absorption: The range of inflammation is absorbed than before, less than 25%; Obvious absorption: The range of inflammation is absorbed than before, more than 25%.