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. 2022 Feb 1;98(5):e459–e469. doi: 10.1212/WNL.0000000000013126

Figure 4. Multivariate Group-Based Trajectory Modeling.

Figure 4

Multivariate group-based trajectory modeling (GBTM) identified 4 distinct subgroups of middle cerebral artery (MCA) (A) and epileptiform abnormality (EA) (B) when trajectories from both modalities are modeled jointly. Patients in “high risk” groups experience high and rapidly increasing MCA peak systolic velocities (PSVs) along with moderate EA (orange; odds ratio [OR] 18.04, p < 0.01) and moderate and increasing MCA PSVs and increasing EA (navy blue; OR 23.30, p < 0.01) (eTable 4, links.lww.com/WNL/B676). Using trajectory group membership on days 3 and 5 has fair model performance (eTable 5).