Table 3. Association of baseline RDW levels with recurrent ischemic stroke.

	Crude model		Adjusted model*
	HR (95%CI)	P value	HR (95%CI)	P value
Age	1.450 (1.152-1.845)	<0.001	1.221 (1.01-1.51)	0.012
Sex	1.006 (0.765-1.323)	0.966	1.015 (0.77-1.34)	0.919
BMI	0.999 (0.952-1.048)	0.970	1.001 (0.95-1.05)	0.986
Smoking	1.267 (1.108-1.671)	0.022	1.121 (1.02-1.31)	0.046
Drinking	1.067 (0.502-2.267)	0.867	1.073 (0.41-2.82)	0.887
Diabetes mellitus	1.100 (0.798-1.516)	0.561	1.170 (0.81-1.70)	0.410
Hypertension	0.897 (0.681-1.181)	0.439	0.864 (0.64-1.17)	0.344
CHD	0.942 (0.537-1.652)	0.836	0.924 (0.51-1.68)	0.795
mRS (≥3/<3)	1.035 (0.794-1.349)	0.801	1.015 (0.903-1.118)	0.829
NIHSS	1.001 (0.961-1.043)	0.947	1.002 (0.961-1.045)	0.919
WBC	1.015 (0.954-1.079)	0.641	1.001 (0.937-1.070)	0.973
RBC	1.151 (0.902-1.470)	0.258	1.414 (0.768-2.650)	0.266
HGB	1.003 (0.995-1.011)	0.508	0.994 (0.974-1.015)	0.568
PLT	1.001 (0.999-1.004)	0.206	1.001 (0.999-1.004)	0.229
AST	1.004 (0.992-1.016)	0.552	1.004 (0.979-1.029)	0.772
ALT	1.002 (0.994-1.010)	0.638	0.998 (0.982-1.014)	0.800
GGT	1.003 (1.000-1.006)	0.086	1.002 (0.998-1.006)	0.262
BUN	0.961 (0.885-1.044)	0.344	0.919 (0.832-1.014)	0.091
CREA	1.001 (0.998-1.003)	0.666	1.003 (0.999-1.006)	0.159
GLU	1.051 (0.989-1.117)	0.109	1.056 (0.992-1.123)	0.087
RDW
Quartile
Q1 (<12.4)	Ref		Ref
Q2 (12.4 to 12.8)	1.472 (0.730-2.966)	0.280	1.372 (0.671-2.805)	0.386
Q3 (12.8 to 13.3)	1.773 (1.192-2.638)	0.005	1.835 (1.222-2.755)	0.003
Q4 (>13.3)	1.724 (1.118-2.238)	<0.001	1.732 (1.114-2.561)	<0.001
P for trend		<0.001		<0.001
Categories
Q1-Q2 (<12.8)	Ref		Ref
Q3-Q4 (>12.8)	1.442 (1.341-1.551)	<0.001	1.439 (1.330-1.556)	<0.001

*Adjusted for age, sex, hypertension, diabetes mellitus, smoking, drinking, body mass index, and coronary heart disease. Q, quartile.