Table 2. Geometric mean ratio (GMR) and the 90% CIs for metformin.
| Parameter | GMR† (%) | 90% CIs | |
|---|---|---|---|
| Metformin | Cmax (µg/mL) | 102.4 | 94.5 – 111.0 | 
| AUC0–t (µg×h/mL) | 107.1 | 100.1 – 114.7 | |
| AUC0–∞ (µg×h/mL) | 107.2 | 100.3 – 114.6 | |
†GMR represents geometric mean ratio of voglibose/metformin fixed-dose combination (test) to coadministered voglibose and metformin (reference) (test/reference). These estimates are obtained using least square means from the mixed effects model with the fixed effects for sequence, period and treatment, and a random effect for subjects within sequence.