Figure 3.

Correlation between MMSE scores and serum levels of 25-hydroxyviamin D (25 OH vitamin D) or IL 6 orTNF α in AD with or without depression. XY scatter plots are shown between MMSE scores and serum levels of 25-hydroxyvitamin D (A) or IL 6 (B) or TNF α (C) in AD subjects with depression or serum levels of 25-hydroxyvitamin D (D) or IL 6 (E) or TNF α (F) in AD subjects without depression. The degree and nature of correlation between the MMSE score and the serum parameter in AD patients is given by the value of r (correlation coefficient) as explained in the methods. A value of p < 0.05 was considered as statistically significant.