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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Stroke. 2014 Jul 29;45(9):2588–2591. doi: 10.1161/STROKEAHA.114.005429

Table 1.

Descriptive statistics of study population aggregated throughout the study.

All (N=4,413) MA (N=2,439) NHW (N=1,974) p*
Age in years, median (Q1, Q3) 72 (61,81) 69 (58,78) 76 (65,83) <0.001
Age, %
45–60 24.8 30.8 17.3 <0.001
61–72 26.2 28.7 23.1
73–81 25.4 22.9 28.5
>81 23.6 17.6 31.1
Atrial Fibrillation, % 15.0 10.5 20.5 <0.001
Coronary Artery Disease, % 32.9 32.5 33.4 0.52
Diabetes Mellitus, % 41.4 54.2 25.4 <0.001
Excessive ETOH, % 5.7 6.1 5.3 0.27
Sex, % female 51.3 50.7 52.1 0.37
High Cholesterol, % 33.5 34.3 32.5 0.19
Hypertension, % 76.8 78.8 74.4 <0.001
NHISS, median (Q1, Q3) 4 (2,8) 4 (2,8) 4 (2,8) 0.05
NIHSS, % 0.09
0–1 20.4 20.3 20.5
2–3 24.7 25.0 24.4
4–7 27.9 29.1 26.4
8–11 12.6 12.4 12.8
12–42 14.4 13.3 15.8
Smoking status, % <0.001
Current 19.4 18.7 20.3
Former 13.0 10.7 15.9
Never 67.6 70.6 63.8
Any insurance, % 89.7 86.9 93.2 <0.001
History of stroke or TIA, % 29.8 29.4 30.3 0.52
Cumulative 30 day mortality 10.3 8.2 12.9 <0.001
Cumulative 1 year mortality 23.5 20.7 27.0 <0.001
*

Chi-square test or KM test for equality of distribution (continuous age, continuous NIHSS)