Table 3.

Characteristics isolated platelets from healthy controls vs patients with RA

	Healthy controls	Patients with RA	P value
Total number	29	32
Female, n (%)	16 (55.2)	22 (68.75)
Male, n (%)	13 (44.8)	10 (31.25)
Age, yr	37.4±1.79	63.5±2.24	< 0.0001
Mean platelet volume (fl)	7.88±0.137	8.41±0.183	0.0273
Platelet distribution width (fl)	9.71±0.217	10.13±0.295	ns
Platelet numbers (109/L)	298.3±21.29	383.9±28.66	0.0187
P-selectin expression (%)	17.94±1.188	44.28±1.889	< 0.0001

ns not significant