Table 2: Effect of metformin with placebo on FBG, PPBG, HbA1c, and plasma AA in patients with type 2 diabetes mellitus after 12 weeks of treatment.

ParameterBefore treatmentAfter treatment 𝑃 (paired)

FBG 1 6 0 . 7 5 ± 2 . 6 0 1 5 5 . 3 3 ± 2 . 3 1 <0.05
PPBG 2 1 8 . 5 1 ± 3 . 5 3 2 1 1 . 5 7 ± 2 . 8 8 <0.05
HbA1c 8 . 1 8 ± 0 . 1 2 8 . 0 1 ± 0 . 1 1 >0.05
Plasma AA 0 . 2 4 ± 0 . 0 0 6 0 . 2 7 ± 0 . 0 1 >0.05

𝑛 = 3 3 in number, FBG: fasting blood glucose, PPBG: postmeal blood glucose, HbA1c: glycosylated hemoglobin, plasma AA: plasma ascorbic acid. FBG, PPBG, and plasma AA are measured in mg/dL.