Thymus CT-grading and rebound hyperplasia during COVID-19 infection: a CT volumetric study with multivariate linear regression analysis

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 Multivariate SPSS analysis including Pearson correlation and linear regression significant analyses

	Thymus	Symptoms	CTSI	Lymphocytes	Age	Sex
Thymus
Pearson Correlation	1	0.163**	0.352**	− 0.343*	0.217**	0.078
Sig. (1-tailed)		0.002^∞	0.000^∞	0.000^∞	0.000^∞	0.081
N	325	325	325	325	325	325
Symptoms
Pearson Correlation	0.163**	1	0.803***	− 0.023**	0.616***	0.049
Sig. (1-tailed)	0.002^∞		0.000^∞	0.343	0.000^∞	0.188
N	325	325	325	325	325	325
CTSI
Pearson Correlation	0.352**	0.803***	1	− 0.074	0.533***	0.035
Sig. (1-tailed)	0.000^∞	0.000^∞		0.090	0.000^∞	0.265
N	325	325	325	325	325	325
Lymphocytes
Pearson Correlation	− 0.343*	− 0.023	− 0.074	1	− 0.026	− 0.039
Sig. (1-tailed)	0.000^∞	0.343	0.090		0.321	0.240
N	325	325	325	325	325	325
Age
Pearson Correlation	0.217**	0.616***	0.533***	− 0.026	1	0.006
Sig. (1-tailed)	0.000^∞	0.000^∞	0.000^∞	0.321		0.455
N	325	325	325	325	325	325
Sex
Pearson Correlation	0.078	0.049	0.035	− 0.039	0.006	1
Sig. (1-tailed)	0.081	0.188	0.265	0.240	0.455
N	325	325	325	325	325	325

No correlation (r = − 0.1:0.1)
*Weak negative correlation (r = − 0.1: − 0.5). **Weak positive correlation (r = 0.1:0.5). ***Strong positive correlation (r > 0.5)
^∞Correlation is significant at the P = 0.01 level (1-tailed)