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. Author manuscript; available in PMC: 2009 Nov 26.
Published in final edited form as: Brain Behav Immun. 2008 Aug 3;22(8):1257–1262. doi: 10.1016/j.bbi.2008.07.010

Figure 1. Mean Differences in the Kynurenine/Tryptophan Ratio as a Function of Depressive Symptom Severity Category.

Figure 1

After controlling for time since HIV diagnosis, individuals with moderate-severe depression had a significantly higher kynurenine/tryptophan ratio (Mean = 58.76, SE = 4.07) compared to either: a) those with no depression (Mean = 47.97, SE = 3.32; p < .05) or b) those mild-moderate depression (Mean = 45.97, SE = 3.71; p < .05).