Table 2. Comparison of changes in %FMD before and after treatment in each group.

	Sitagliptin (n = 48)	Glimepiride (n = 55)	P value
FMD (%)
Baseline	5.6 ± 2.8	5.6 ± 2.2
26 weeks	5.6 ± 2.8	6.0 ± 2.3
ΔFMD (%)	0.002 (-3.89 to 3.89)	0.43 (-3.57 to 4.44)
Comparison of ΔFMD in ANCOVA	-0.41 (-1.20 to 0.37)	reference	0.303

Values are expressed as mean ± SD or the least square means (95% CI). The least square means were calculated by ANCOVA adjusted for baseline FMD. FMD, flow-mediated dilation; ANCOVA, analysis of covariance; CI, confidence interval