Explore the landscape · Red cell width (RDW) × albumin

Red cell width (RDW) × albumin

Two strong, independent signals: moving RDW from 12.5% to 15.5% roughly doubles hazard, and low albumin raises it about 45% further at any RDW.

Mortality hazard1.00× reference

RDW: 12.9
Albumin: 42
Within data: yes

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Hazard relative to the reference, by contour band.

Cox model with restricted cubic splines and a RDW × Albumin interaction (likelihood-ratio p = 0.86), adjusted for age and sex. NHANES 1999–2018 with linked mortality to 2019; 48,290 adults, 7,021 deaths. Hazards are associations: the move button reads the surface at a new position and is not a trial estimate of what treatment would do. The path joins the average adult in each decade of age, and each oval holds the middle half of people that age (NHANES, unweighted). Different people at each age, so this is how the population differs by age, not one person's path.

How to read it

Colour shows all-cause mortality hazard relative to the reference point, from a Cox model fitted on 48,290 adults with 7,021 deaths. Each contour band is one step on the scale beside the map. Hatched areas hold too few people to estimate.

The interaction test asks whether the two markers combine differently from the sum of their separate effects (likelihood-ratio p = 0.86). Use Copy link to this view to share the exact position you are looking at.

Biomarker pages: Red Cell Distribution Width (RDW) · Serum Albumin.