Association between sodium excretion quartiles and insulin resistance (IR) according to age.

Participants whose HOMA-IR was in the top decile of the study population were defined as having IR. Risks of IR was adjusted by gender, hemoglobin, estimated glomerular filtration rate, aspartate aminotransferase, alanine aminotransferase, energy intake, hypertension, myocardial infarction, angina, stroke, malignancy, current smoker, and alcohol. a. Adjusted risks of IR according to sodium excretion in age group 20–39 years. b. Adjusted risks of IR according to sodium excretion in age group 40–64 years. c. Adjusted risks of IR according to sodium excretion in age group 65–74 years. d. Adjusted risks of IR according to sodium excretion in age group ≥ 75 years.