Fracture HRs corresponding to a 20% increment in sodium. Hazard ratios (HR) and corresponding confidence intervals (CI) are estimated from Cox proportional hazard regression models stratified by 5-year age group, study component, HT and CaD trial randomization arms, and adjusted for race/ethnicity, education, income, smoking, alcohol intake, history of fracture, family history of hip fracture, physical functioning, self-reported health status, treated diabetes, hormone therapy use, medication use (bisphosphonate, oral corticosteroid, thiazide, anticonvulsant, protein pump inhibitor, thyroid), calcium, vitamin D and magnesium intake from diet and supplements.