Table 3.

Multivariate analysis of association between blood pressure levels and mortality at follow‐up

	1‐month follow‐up			3‐month follow‐up			12‐month follow‐up
	HR	95% CI	p	HR	95% CI	p	HR	95% CI	p
BP at ER
SBP	1	0.98–1.012	.965	1	0.99–1.009	.923	0.994	0.986–1.002	.154
MAP	1.007	0.988–1.098	.465	1.003	0.987–1.020	.725	0.993	0.980–1.006	.295
BP change
ΔSBP	0.981	0.968–0.994	.005	0.989	0.981–0.998	.014	0.989	0.982–0.996	.003
ΔMAP	0.961	0.940–0.983	<.001	0.97	0.953–0.987	.001	0.982	0.97–0.993	.002

BP, blood pressure; ER, emergency room; HR, hazard ratio; SBP, systolic blood pressure; MAP, mean arterial pressure.

Age, sex, NIHSS score in the acute setting, congestive heart failure, diabetes mellitus (type 1 and type 2), and history of ischemic stroke (IS)were used as covariates. In the analyses of ΔSBP and ΔMAP, SBP and MAP, respectively, were also included as covariates.