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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: J Psychiatr Res. 2020 Jul 30;130:280–285. doi: 10.1016/j.jpsychires.2020.06.012

Table 3.

Results of linear mixed models

F (df) p-value
230 Minutes
 Intercept 5274.90 ( 1,73) <.0001
 Infusion 19.66 ( 1,61) <.0001
 Baseline MADRS 120.50 ( 1,61) <.0001
 Drug 53.84 ( 1,61) <.0001
 KI-Floating 0.83 ( 3,73) 0.48
 Drug x KI-Floating 1.02 ( 3,61) 0.39
 Study 13.14 ( 1,73) 0.0005
Day 1
 Intercept 5010.83 ( 1,75) <.0001
 Infusion 10.02 ( 1,65) 0.0024
 Baseline MADRS 98.04 ( 1,65) <.0001
 Drug 61.26 ( 1,65) <.0001
 KI-Floating 0.30 ( 3,75) 0.82
 Drug x KI-Floating 0.66 ( 3,65) 0.58
 Study 2.91 ( 1,75) 0.09

Abbreviations: df: degrees of freedom; MADRS: Montgomery-Asberg Depression Rating Scale; KI-floating: ketamine-induced floating (maximum floating experience post-ketamine minus maximum floating experience post-placebo).