Fig. 1: Hazard ratios of mortality by body mass index and biological sex.

BMI body mass index The rightmost y-axis shows the percentages for the distribution of body mass index. The hazard ratios for mortality are shown on the leftmost y-axis. The referent (hazard ratio of 1) is a woman in with a BMI of 20 kg/m2; it is marked with an X and a horizontal line is drawn through it. The two left-most vertical lines indicate the theoretical range of the so-called “healthy” BMIs: 18.5–25 kg/m2. In this BMI cohort, 3616 (8.9%) of participants died.