Table 2.

Plasma levels of ADAMTS-13 and von Willebrand factor (VWF) in controls amongst the different binary variables examined [i.e. according to sex, smoking, diabetes, and the taking of medication for high blood pressure (BP) or high cholesterol]. P-values after transformations as in Table 1

	Yes						No
	n	Mean	SD	Median	1st Quartile	3rd Quartile	n	Mean	SD	Median	1st Quartile	3rd Quartile	P-value*
Male? ADAMTS-13	296	111	32.5	107	89.3	126	106	114	34.6	106	93.8	120	0.27
VWF	296	165	62.1	156	121	198	106	160	54.9	152	120	200	0.16
Ever smoked? ADAMTS-13	302	110	32.5	106	88.9	125	98	118	34.3	108	96.0	129	0.11
VWF	302	166	61.4	157	119	201	98	157	56.6	144.5	122	189	0.60
Diabetes? ADAMTS-13	7	126	30.8	117	100	145	393	112	33.1	106	90.8	126	0.20
VWF	7	192	66.3	195	133	261	393	163	60.2	154	121	197	0.32
High BP medication?ADAMTS13	66	123	40.5	112	98.4	140	334	110	31.0	105.2	90.3	125	0.0009
VWF	66	174	65.6	175	130	207	334	161	59.1	152	120	196	0.44
High cholesterolmedication? ADAMTS-13	5	124	32.0	127	102	129	395	112	33.1	106	90.8	126	0.37
VWF	5	212	95.7	176	175	198	395	163	59.7	154	120	197	0.15