CT pulmonary angiography in COVID-19 pneumonia: relationship between pulmonary embolism and disease severity

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 Illustrate the median age, the timing of CTPA, laboratory levels, and CT severity score in correlation with the incidence of pulmonary embolism (PE)

*Wilcoxon rank-sum test*	*CT angiography group*	*Median*	*25 Perc*	*75 Perc*	Z	*P value*	*Sig.*
*Age*	*Negative*	47.5	27.5	61.75	− 1.203	0.229	NS
*Age*	*Positive*	55.5	39.5	67.25	− 1.203	0.229	NS
*Time for CT angiography*	*Negative*	9	5	15.75	− 1.09	0.276	NS
*Time for CT angiography*	*Positive*	12	10	16.5	− 1.09	0.276	NS
*D. dimer level*	*Negative*	1.26	0.575	3.2625	− 1.119	0.263	NS
*D. dimer level*	*Positive*	1.8	1.185	4.425	− 1.119	0.263	NS
*Ferritin level*	*Negative*	530	198.75	815.25	− 0.345	0.73	NS
*Ferritin level*	*Positive*	425	270.25	701.25	− 0.345	0.73	NS
*CRP level*	*Negative*	79	12.775	167.5	− 1.464	0.143	NS
*CRP level*	*Positive*	118.5	78.5	156.25	− 1.464	0.143	NS
*WBC count*	*Negative*	11.2	7.6	16.425	− 0.596	0.551	NS
*WBC count*	*Positive*	10.5	8.35	13.05	− 0.596	0.551	NS
*Neutrophil count*	*Negative*	8.845	5.75	13.8	− 0.282	0.778	NS
*Neutrophil count*	*Positive*	8.4	6.425	10.15	− 0.282	0.778	NS
*Lymphocyte count*	*Negative*	1.44	0.76	2.205	− 0.638	0.523	NS
*Lymphocyte count*	*Positive*	1.1	0.9125	1.575	− 0.638	0.523	NS
*CT severity score for COVID-19*	*Negative*	7	1.25	14.75	− 0.326	0.745	NS
*CT severity score for COVID-19*	*Positive*	6	4	10.75	− 0.326	0.745	NS