NPY and ischemic stroke: After adjustment for age, sex, admission NIHSS score, medical history, ischaemic stroke subtype and other important prognostic factors, compared with the lowest quartile the ORs (95% CIs) associated with the highest quartile of plasma NPY were 1.56 (1.19–2.04) for the primary outcome and 1.80 (1.35–2.40) for major disability.