title: Trends in the levels of urine and serum creatinine: data from NHANES 2001-2014.
abstract: Data from the National Health and Nutrition Examination Survey were used to study trends for urine and serum creatinine over 2001-2014 for those aged ≥20 years. In the absence of chronic kidney disease, levels of urine creatinine decreased for the total population, for those aged 20-29, 50-59, and ≥70 years, for males, and for Mexican Americans and other race/ethnicities. Levels of serum cotinine also exhibited a decreasing trend over 2001-2014 for the total population, for those aged 20-29 and 40-49 years, for females, and for non-Hispanic whites and Mexican Americans. In general, levels of serum creatinine and urine creatinine were positively correlated for chronic kidney disease stages 1-3 and negatively correlated for chronic kidney disease stages 4 and 5.
authors.affiliation: , 2959 Estate View Court, Dacula, GA, 30019, USA. Jain.Ram.B@Gmail.com.
authors.forename: Ram B
authors.initials: RB
authors.lastname: Jain
mesh_terms: D000328:Adult; D000368:Aged; D003367:Cotinine; D003404:Creatinine / Q000097:blood* / Q000652:urine; D005260:Female; D006801:Humans; D008297:Male; D017058:Mexican Americans; D008875:Middle Aged; D009749:Nutrition Surveys; D014481:United States; D044465:White People
chemical_list: D003404:Creatinine; D003367:Cotinine
keywords: Aging; Chronic kidney disease; Diabetes; Gender; Race/ethnicity; Serum creatinine