Fig. 1
From: Diagnostic challenge of the newborn patients with heritable protein C deficiency
Plasma activity levels of protein C (PC) and protein S (PS) in healthy newborn infants. Both activity levels were measured by using 46 plasma samples concurrently procured from 46 subjects during the neonatal period. Open and closed circles represent PS and PC levels, respectively. Dashed and solid lines represent the linear regression line between the days after birth and PS levels (correlation coefficient [cc] = 0.40, p < 0.01) or PC levels (cc = 0.58, p < 0.01), respectively, assessed by the Spearman’s rank-sum test. The slope indices in the linear correlations did not differ between PC and PS activities assessed by the covariance analysis
