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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Brain Behav Immun. 2012 Nov 29;31:143–152. doi: 10.1016/j.bbi.2012.11.011

Fig. 2.

Fig. 2

Two-way interaction plot illustrating the differential relationship between F2-IsoPs and IL-6, as a function of high versus low depression scores on the IDS. High and low are defined as 1 SD above or below the mean value for both F2-IsoPs and the IDS, based on the approach described by Hayes and Matthes (2009) and the corresponding modprobe macro in SPSS. In subjects with low depression scores, F2- IsoP and IL-6 concentrations are not significantly related. But in subjects with high depression ratings, progressively higher F2-IsoP concentrations are associated with higher IL-6 concentrations.