GFAP and anemia: When blood biomarkers were analyzed across specific multimorbidity patterns, the Aβ42/40 ratio was slightly lower while p‐tau181, p‐tau217, t‐tau, NfL, and GFAP levels were higher in the anemia/sensory impairment and the cardiometabolic/inflammatory patterns compared to those without multimorbidity (Figure 2).