Figure 1. ApoE4 carriers present with a lower extent of improvement following decompression surgery when compared with ApoE4 noncarriers.

ApoE4 carriers (n = 7) had a significantly lower mJOA score postdecompression compared with ApoE4 noncarriers (n = 27), *P < 0.05, Mann-Whitney U test. mJOA, modified Japanese Orthopedic Association.