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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Resuscitation. 2020 Jan 28;148:152–160. doi: 10.1016/j.resuscitation.2020.01.020

Table 1:

Models compared in this work.

Model Longitudinal predictor Other predictors of cluster membership Predictors of outcome
GBTM - unadjusted SR -- PPGMs
GBTM - Ocov SR -- PPGMs; age; sex; arrest location; arrest rhythm; PCAC; GWR
GBTM - Risk SR Age; sex; arrest location; arrest rhythm; PCAC; GWR PPGMs
GBTM - Ocov + Risk SR Age; sex; arrest location; arrest rhythm; PCAC; GWR PPGMs; age; sex; arrest location; arrest rhythm; PCAC; GWR
K-means - unadjusted SR -- SSDs
K-means - Adjusted SR -- SSDs; age; sex; arrest location; arrest rhythm; PCAC; GWR
Bayesian regression SR -- --

Abbreviations: SR – suppression ratio; PCAC – Pittsburgh Cardiac Arrest Category; GWR – Grey matter to white matter ratio of Hounsfield units on brain computerized tomography; PPGMs – posterior probability of group membership; SSDs – Sum squared Euclidean distances from each cluster mean