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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: J Psychiatr Res. 2015 Apr 20;65:53–62. doi: 10.1016/j.jpsychires.2015.04.010

Table 4.

Summary of Pearson correlations between control subjects and those with MDD for CNPase protein expression and potentially confounding variables.

Variable CNPase protein
Control MDD
r p r p
Age at death 0.255 0.40 0.064 0.84
PMI 0.218 0.47 −0.007 0.98
Tissue pH 0.257 0.40 0.489 0.09
TF −0.416 0.16 −0.703 0.007
Duration of depression - - −0.022 0.94

CNPase - 2,′3′-cyclic nucleotide 3′-phosphodiesterase; MDD – major depressive disorder; PMI - postmortem interval; TF - storage time in freezer.