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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Liver Transpl. 2011 Jun;17(6):723–732. doi: 10.1002/lt.22266

Figure 1. C4 serum level in Acute Cellular Rejection and Non-rejection groups.

Figure 1

A scatter plot of individual values for C4 and C1q are shown. Mean C4 levels were significantly lower among patients with ACR (p=0.0001). Using a cut off value for C4 of ≤0.31gm/L, C4 had a sensitivity of 97%, a specificity of 62%, a positive predictive value of 74% and a negative predictive value of 94% in identifying patients with ACR. Mean C1q was also significantly lower among patients with ACR (p=0.0183).