Abstract Background Delirium is an underdiagnosed and possibly preventable complication in acute stroke linked to poor outcome. Neutrophil-to-lymphocyte ratio (NLR), a marker of systemic inflammation, also associated with outcome after ischemic stroke. Aim To determine whether NLR predictor post-stroke delirium (PSD). Methods We reviewed the UZ Brussel database included 514 patients within 24 h...