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. Author manuscript; available in PMC: 2023 Feb 16.
Published in final edited form as: Mol Psychiatry. 2022 Jun 27;27(9):3658–3669. doi: 10.1038/s41380-022-01652-1

Fig. 2. Meta-analytical calculations comparing post-treatment and baseline blood levels of brain-derived neurotrophic factor (pg/ml) in responders and non-responders to ketamine (n = 331, 11 studies).

Fig. 2

*Responder = participant with least at 50% improvement in depression scores. **The manuscript by Kang & Vasquez (2021) had only one non-responder, therefore, it was not possible to conduct meta-analytical calculations for the non-responder group in their study.