NHANES_Demographics_Cognition_NPS

This file contains a single worksheet that documents information on demographic characteristics, lifestyle factors, disease status, and cognitive function of the participants. Demographic variables include age, sex, race, education level, poverty income ratio (PIR), and marital status. Lifestyle-related indicators cover smoking, drinking, and body mass index (BMI). Disease status is represented by diabetes and hypertension. In addition, the file records several cognitive assessment measures, such as delay response (delay), reading test (cread), animal fluency test (aft), and digit symbol substitution test (dsst). For complex survey design, the file provides sequence number (SEQN), sample weight (weight), primary sampling unit (SDMVPSU), and strata (SDMVSTRA). Finally, the dataset also includes the Naples Prognostic Score (NPS) and its functional component (NPSF), which can be used to further investigate the relationships between nutrition, inflammation, metabolic status, and cognitive function.