Table 2.

Patient-level factors associated with ischemic stroke

Variable	ARR (99% CI)	P value
Age, per year	1.02 (1.01 to 1.02)	<0.0001
Female sex	1.50 (1.44 to 1.57)	<0.0001
Race/ethnicity
White	1 (reference)
African American	1.28 (1.22 to 1.35)	<0.0001
Hispanic	1.15 (1.06 to 1.24)	<0.0001
Other	0.86 (0.77 to 0.97)	0.0016
BMI category		< 0.0001
<20 kg/m2	0.99 (0.92 to 1.07)	0.76
20–24.9 kg/m2	1 (reference)
25–29.9 kg/m2	0.96 (0.91 to 1.01)	0.027
≥30 kg/m2	0.82 (0.77 to 0.86)	<0.0001
Smoker	1.04 (0.94 to 1.15)	0.31
Substance abuser	0.87 (0.72 to 1.04)	0.05
Unemployed	1.66 (1. 42 to 1.95)	<0.0001
Inability to ambulate	0.92 (0.82 to 1.03)	0.06
Inability to transfer	1.05 (0.89 to 1.25)	0.45
In-center hemodialysisa	1.09 (1.01 to 1.19)	0.0060
Comorbid conditions
AF	1.40 (1.33 to 1.48)	<0.0001
Hypertension	1.25 (1.16 to 1.35)	<0.0001
Diabetes mellitus	1.13 (1.06 to 1.21)	<0.0001
Congestive heart failure	0.95 (0.88 to 1.01)	0.035
Coronary artery disease	0.96 (0.92 to 1.01)	0.064
Peripheral vascular disease	1.03 (0.97 to 1.09)	0.28
Prior cerebrovascular accident	2.47 (2.34 to 2.61)	<0.0001
Liu comorbidity score
0–3	1 (reference)
4–6	1.00 (0.94 to 1.07)	0.92
≥7	0.96 (0.86 to 1.07)	0.34

ARR, adjusted rate ratio; CI, confidence interval.

^aIn-center hemodialysis is contrasted to self-care dialysis, which consists of peritoneal dialysis and home hemodialysis.