| Control group mean (standard deviation) (n = 191) | Intervention group mean (standard deviation) (n = 266) | Difference in mean HbA1c during trial (95% confidence interval) | |||
---|---|---|---|---|---|---|
 | Before trial | During trial | Before trial | During trial | Unadjusted | Adjusted* |
Mean HbA1c | 8.41 (1.64) | 8.38 (1.60) | 8.38 (1.68) | 8.15 (1.49) | -0.26 | -0.30 |
(-0.60, 0.07) | (-0.52, -0.07) | |||||
 |  |  |  |  | p = 0.125 | p = 0.009 |