Figure 3
Relative plasma ascorbic acid concentrations (mM divided by dose in grams per kg weight) as a function of tumor marker values for PSA, CA 15–3, CA 27.2, CA 125, CEA, and the inflammation marker CRP. Data fits are y = a + b log(x); r values for CA 15–3, CA 27.29, CA 125, and CRP are significant for correlation at the 95% confidence level (p < 0.05) while those for PSA and CEA are significant at the 90% level (p < 0.10).