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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: JAMA Psychiatry. 2015 Feb 1;72(2):169–178. doi: 10.1001/jamapsychiatry.2014.2406

Figure 3. Bivariate Plot of the Relationship Between Raphe Nuclei Serotonin1A Binding Potential (BPF) and the Beck Scale for Suicide Ideation Score in All Participants.

Figure 3

Participants include the 91 patients with major depressive disorder (MDD). Error bars depict associated SE; diagonal line, best fit; and slope, correlation. Suicidal ideation scores in the 2 weeks before positron emission tomography range from 0 to 30 (F1,87 = 7.38; P = .008; R2 = 0.12). Displayed serotonin1A BPF estimates have been adjusted for sex and prior antidepressant use derived from the specific linear mixed-effects model examining the relationship of raphe nuclei serotonin1A BPF with the Beck Scale for Suicide Ideation score in all participants with MDD. For display purposes, 1 lower-lethality attempter with a very high serotonin1A BPF and SE is not included in this plot but was included in all the statistical analyses.