Table 1.

Subject Characteristics, Stratified by Study Group

Characteristic*	Cancer-Stroke (N=10)	Stroke-Only (N=10)	Cancer-Only (N=10)	Vascular Risk Factors-Only (N=10)
Age, mean (SD), year	63 (12)	67 (15)	59 (18)	61 (11)
Female	6 (60)	6 (60)	6 (60)	6 (60)
Race
White	7 (70)	10 (100)	7 (70)	7 (70)
Black	2 (20)	0 (0)	3 (30)	1 (10)
Other	1 (10)	0 (0)	0 (0)	2 (20)
Time from last known well to blood draw, hours (mean ± SD)	94 (11)	95 (12)	N/A	N/A
Cancer type
Lung	3 (30)	N/A	3 (30)	N/A
Breast	3 (30)	N/A	3 (30)	N/A
Prostate	2 (20)	N/A	3 (30)	N/A
Pancreas	1 (10)	N/A	0 (0)	N/A
Ovarian	1 (10)	N/A	1 (10)	N/A
Adenocarcinoma	10 (100)	N/A	10 (100)	N/A
Systemic metastases	9 (90)	N/A	10 (100)	N/A
Brain metastases	1 (10)	N/A	3 (30)	N/A
Chemotherapy within 30 days	7 (70)	N/A	8 (80)	N/A
WBC, mean (SD), count/nL	7.7 (3.8)	7.0 (2.6)	5.9 (1.9)	--†
Platelet, mean (SD), count/nL	197 (48)	207 (63)	270 (110)	--†
Stroke mechanism‡
Large artery atherosclerosis	0 (0)	1 (10)	N/A	N/A
Small vessel disease	0 (0)	1 (10)	N/A	N/A
Cardioembolic	5 (50)	2 (20)	N/A	N/A
Other	0 (0)	1 (1)	N/A	N/A
Cryptogenic	5 (50)	5 (50)	N/A	N/A
NIH Stroke Scale, mean (SD)	4 (3)	1 (2)	N/A	N/A
Vascular risk factors
Diabetes mellitus	2 (20)	0 (0)	2 (20)	1 (10)
Hypertension	5 (50)	7 (70)	4 (40)	7 (70)
Hyperlipidemia	2 (20)	6 (60)	1 (10)	4 (40)
Peripheral artery disease	0 (0)	0 (0)	1 (10)	0 (0)
Atrial fibrillation	1 (10)	0 (0)	1 (10)	0 (0)
Coronary artery disease	0 (0)	0 (0)	1 (10)	0 (0)
Chronic kidney disease	0 (0)	0 (0)	1 (10)	0 (0)
Prior stroke/TIA	2 (20)	0 (0)	1 (10)	0 (0)
Smoking history (any)	3 (30)	2 (20)	4 (40)	4 (40)

Abbreviations: SD, standard deviation; N/A, not applicable; WBC, white blood cell

^*All data are presented as number (%) unless otherwise specified.

^†Not performed because samples amenable to blood counts calculation were not collected.

^‡According to the Trial of ORG 10172 (TOAST) clasification