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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Biol Psychiatry. 2018 Feb 3;84(1):9–17. doi: 10.1016/j.biopsych.2018.01.012

Figure 2.

Figure 2

Exploratory analysis showing the strength of the association between daily emotional states and peripheral blood mononuclear cells’ mitochondrial health index (MHI). (A) Combined effect size for the association between MHI and emotional states measured 1) across the week: Week average; 2) over 3 days preceding peripheral blood mononuclear cell collection: Days before; or 3) over 3 days after peripheral blood mononuclear cell collection: Days after. Note that effect sizes are larger for time points preceding blood draw, suggesting a directional relationship from mood to mitochondria. Mood was assessed in the morning and at night as described in the Supplemental Methods and Materials. +p < .10; *p < .05, **p < .01; n = 86 to 89. N.S., not significant. (B) Individual Pearson’s r correlation coefficients between daily measures of positive or negative mood and MHI measured from blood drawn at day 4; n = 86 to 89.