Fig. 3. Association of interarm BP difference with early neurological deterioration according to interarm difference in the diastolic blood pressure subgroups. Subgroups were divided according to the median values of continuous or ordinal variables. p values are for interactions between subgroups. ABI: ankle-brachial index, BMI: body mass index, BP: blood pressure, HGWMH: high-grade white-matter hyperintensity, NIHSS: National Instititues of Health Stroke Scale.