Could Diabetes Drugs Help Protect Against Prostate Cancer?
This figure shows cumulative incidence curves comparing prostate cancer risk between men taking GLP-1 receptor agonists (GLP-1RA, shown in blue) versus those taking basal insulin (shown in black) over a 12-year follow-up period. It's from the Danish nationwide cohort study. Key Elements: Panel a: Intention-to-Treat Analysis Both groups start at 0% risk and increase over time The curves are very similar, nearly overlapping By 12 years, both groups reach approximately 1.75-2% absolute risk of prostate cancer The shaded areas represent confidence intervals (uncertainty ranges) Patient numbers at risk are shown below, decreasing over time as expected in follow-up studies Panel b: Per-Protocol Analysis This analysis only counts time when patients were actually taking their assigned medication Shows a clearer separation between the two groups The blue line (GLP-1RA) stays notably lower than the black line (basal insulin) By 12 years: Basal insulin group: ~1.25% absolute risk GLP-1R...