Exploring the correlation between dietary zinc intake and stroke risk in adults based on NHANES database

Methods Subjects from the National Health and Nutrition Examination Survey (NHANES) database (2015 to 2020) were included. Zinc intake was determined using two 24-h dietary recall interviews, and stroke was determined using the Medical Condition Questionnaire (MCQ). Logistic analysis was used to analyze the association between zinc intake and stroke risk. 1:1 nearest neighbor propensity score matching (PSM) was used to reduce selection bias.