Table 4.

Partial correlation between activities of antioxidant enzymes (SOD, GR, and GPX), serum levels of TAC and BMI after adjusted for age, gender, and serum concentrations of FBS, HbA1c, cholesterol, TG, LDL, HDL , PTH and 25(OH)D in type 2 diabetic patients and healthy subjects

Variable	Type 2 diabetics	Controls
SOD	r = 0.36	r = 0.87
(U/g Hb)	P = 0.15	P = 0.02
GSH-PX	r = 0.24	r = 0.78
(U/g Hb)	P = 0.34	P = 0.05
GR	r = 0.15	r = 0.62
(U/g Hb)	P = 0.55	P = 0.18
TAC	r = − 0.07	r = − 0.40
(mg/dl)	P = 0.78	P = 0.42

P <0.05 is statistically significant.