Fig 1.

Restricted cubic spline plot of association of estimated 24 hour urinary sodium excretion with composite of all cause mortality and major cardiovascular events, mortality, and major cardiovascular events (composite of cardiovascular death or myocardial infarction or stroke or heart failure). Plots adjusted for age (included as spline function), sex, education, current and former alcohol intake (units weekly), diabetes mellitus, body mass index, physical activity, history of cardiovascular events, use of cardiovascular drugs (blood pressure lowering, statins, or antidiabetics), history of tuberculosis, cancer, HIV, and current and former smoking. Dashed lines indicate 95% confidence intervals. Median intake is reference standard (4.9 g/day). Salt approximates 2.5×sodium g/day. Spline curve was truncated at 10 g/day in all plots