Table 2. Hazard ratios for first-ever stroke mortality according to different CKD stages.

Ischemic stroke	1-month mortality			1-year mortality
	HR	95% CI	p-value	HR	95% CI	p-value
G1	1			1
G2	1.16	0.76–1.77	0.5003	1.17	0.95–1.44	0.134
CKD G3	1.70	1.10–2.64	0.0170*	1.89	1.53–2.35	<.0001*
CKD G4	1.96	1.05–3.64	0.0338*	2.72	2.00–3.71	<.0001*
CKD G5	2.36	1.27–4.39	0.0067*	5.28	3.94–7.08	<.0001*
Hemorrhagic stroke	1-month mortality			1-year mortality
	HR	95% CI	p-value	HR	95% CI	p-value
G1	1			1
G2	1.10	0.73–1.67	0.6472	1.18	0.85–1.63	0.3262
CKD G3	1.34	0.85–2.13	0.2119	1.61	1.12–2.31	0.0105*
CKD G4	1.06	0.42–2.70	0.8964	1.72	0.86–3.45	0.1274
CKD G5	2.17	1.33–3.54	0.0019*	3.03	2.03–4.54	<.0001*

Adjusted for age, sex, hypertension, diabetes mellitus, atrial fibrillation, malignancies, and National Institute of Health Stroke Scale.

*p<0.0.5

CKD: chronic kidney disease; HR: hazard ratio; CI: confidence interval