Stroke survival and the impact of geographic proximity to family members: A population-based cohort study

•This study combined multigenerational and geographical large-scale data in Norway.•Family support's impact on stroke survival was analysed by geographical distance.•Distance to a nearest first-degree relative was weakly associated with mortality.•Having a spouse/partner was the most prominent predictor of reduced mortality.•The impact of familial support was larger for those hospitalised at age ≤65 years.