Table 3

Spearman correlation between the platelet activation markers, EV levels and the SLEDAI score

	All SLE			Prevalent SLE			Incident SLE
	n	r_s	P_value	n	r_s	P_value	n	r_s	P_value
Plasma ATX	95	−0.17	0.0998	69	−0.17	0.1695	26	−0.18	0.3717
Platelet activation	39			22			17
PAC1⁺		0.09	0.5859		−0.08	0.7141		0.46	0.0646
PAC1⁺ ATX⁺		0.02	0.9032		−0.18	0.4273		0.41	0.1040
CD62P⁺		0.48	0.0021		0.43	0.0479		0.59	0.0127
CD62P⁺ ATX⁺		0.19	0.2492		0.03	0.8818		0.56	0.0207
PAC1⁺ CD62P⁺		0.27	0.0927		0.01	0.9790		0.65	0.0045
PAC1⁺ CD62P⁺ ATX⁺		0.12	0.4565		−0.04	0.8600		0.43	0.0817
PEVs	99			72			27
Total		0.06	0.5377		0.01	0.9093		0.28	0.1574
PS⁺		0.05	0.6389		0.00	0.9842		0.25	0.2122
REVs	99			72			27
Total		−0.07	0.4806		−0.09	0.4623		0.04	0.8275
PS⁺		−0.08	0.4274		−0.12	0.3166		0.16	0.4325

Significant p_values are in bold.
ATX, autotaxin; EV, extracellular vesicle; PEV, platelet EV; PS⁺, phosphatidylserine positive; REV, red blood cell EV; SLE, systemic lupus erythematosus.