One study in 45 post-stroke participants found higher IL-1β predicted fatigue at 6 months and lower IL-1ra and IL-9 predicted fatigue at 12 months,8 this study assessed biomarkers < 72 hours after stroke, whereas we assessed a cohort who were at least 3-month post-acute stroke, which may account for the differences seen in our results. Here, IL1B is linked to stroke disorder.