Systolic blood pressure (BP) (A) and diastolic BP (B) depicted in tertiles of estimated glomerular filtration rate (eGFR). Median (thick line inside box), 25th to 75th percentile (box), range (whiskers), and outliers (circles). P values for unadjusted analyses, and P values adjusted for differences in age, waist:height ratio, low‐density lipoprotein cholesterol, and sex.