Table 2.

Linear regression analysis

Dependent variable	β-coefficient	SEM	t	P value	β	95 % CI
CD62P	2.01	0.80	2.50	0.01	0.27	0.41	3.60
Aggregates	0.47	0.24	1.96	0.05	0.21	−0.01	0.95
sCD40L	0.51	0.23	2.24	0.03	0.24	0.06	0.96

CD62P P-selectin, CI confidence interval, sCD40L soluble CD40 ligand, SEM standard error of the mean

The β-coefficient represents the effect sizes from the regression analyses of the association between platelet characteristics induced by a given plasma sample and group status of the plasma donor. β-values represent the standardised regression coefficients

The t statistic (t) is the beta-coefficient divided by its standard error