Table 2.
Glucose control: comparison between FGM1 (weeks 1–4) and FGM2 periods (weeks 5–8 and 9–12)
| Outcome measure | FGM1 (weeks 1–4) | FGM2 (weeks 5–8) | FGM2 (weeks 5–8) versus FGM1 (weeks 1–4) | FGM2 (weeks 9–12) | FGM2 (weeks 9–12) versus FGM1 (weeks 1–4) | ||
|---|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | MD (95% CI) | p value | Mean (SD) | MD (95% CI) | p value | |
| Time in 70–180 mg/dl, % | 52.8 (13.6) | 57.0 (14.3) | 4.2 (1.8 to 6.7) | 0.001 | 55.8 (15.9) | 3.0 (0.1 to 5.8) | 0.04 |
| Time below 70 mg/dl, % | 6.2 (4.9) | 3.4 (3.0) | − 2.8 (− 3.7 to − 1.7) | < 0.0001 | 3.6 (3.3) | − 2.6 (− 3.6 to − 1.5) | < 0.0001 |
| Time below 54 mg/dl, % | 1.4 (1.6) | 0.3 (0.7) | − 1.1 (− 1.6 to − 0.6) | < 0.0001 | 0.5 (1.0) | − 0.9 (− 1.4 to − 0.4) | 0.0005 |
| Time above 180 mg/dl, % | 41.1 (17.1) | 39.6 (15.4) | − 1.5 (− 4.3 to 1.3) | 0.27 | 40.6 (17.6) | − 0.5 (− 3.8 to 2.8) | 0.77 |
| Time above 250 mg/dl, % | 14.6 (11.5) | 11.9 (9.4) | − 2.7 (− 4.9 to − 0.5) | 0.02 | 13.6 (11.6) | − 1.1 (− 3.6 to 1.3) | 0.35 |
| Mean glucose, mg/dl | 171.2 (32.1) | 169.6 (24.2) | − 1.6 (− 6.9 to 3.7) | 0.54 | 171.6 (29.7) | 0.4 (− 5.5 to 6.3) | 0.89 |
| GMI, % | 7.4 (0.7) | 7.4 (0.6) | 0.0 (− 0.2 to 0.1) | 0.54 | 7.4 (0.7) | 0.0 (− 0.1 to 0.1) | 0.89 |
| CV, % | 39.6 (5.3) | 36.1 (5.5) | − 3.5 (− 4.9 to − 2.1) | < 0.0001 | 36.3 (4.7) | − 3.3 (− 4.8 to − 1.8) | < 0.0001 |
| Number of scans per day | 9.6 (6.5) | 15.5 (7.8) | 5.9 (4.3 to 7.5) | < 0.0001 | 13.4 (7.1) | 3.8 (2.4 to 5.2) | < 0.0001 |
CI confidence interval. CV coefficient of variation, GMI glucose management indicator, MD mean difference, SD standard deviation