The Egyptian Journal of Internal Medicine

Table 2 Protein C and S activity difference between the study groups

From: Evaluation of protein C and S levels in patients with COVID-19 infection and their relation to disease severity

		Groups		T-test
		Group I (patients)	Group II (control)	t	P-value
Protein C	Range	42–138	44–127	− 3.972	< 0.001*
Protein C	Mean ± SD	79.35 ± 26.02	97.43 ± 15.01	− 3.972	< 0.001*
Protein S	Range	35–113	0.8–1.2	− 5.166	< 0.001*
Protein S	Mean ± SD	70.23 ± 22.48	91 ± 14.5	− 5.166	< 0.001*

^*Statistically significant difference

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