GFAP and hydrops fetalis: In HF, the baseline association between pTau181 and memory (β±SE –0.31±0.10; q < 0.01) remained, as did the baseline associations between GFAP and global cognition (β±SE –0.13±0.05; q < 0.05) and memory (β±SE –0.27±0.11; q < 0.05).