Table 2.
Changes in HbA1c at each follow-up.
| CGM non-users | CGM users | P-value | |||
|---|---|---|---|---|---|
| N | HbA1c (%) | N | HbA1c (%) | ||
| Baseline (mean ± SD) | 310 | 7.5 ± 1.2 | 155 | 7.5 ± 1.2 | |
| At 3 months (mean ± SD) | 256 | 7.6 ± 1.2 | 155 | 7.2 ± 1.1 | |
| Changes from baseline to 3 months (mean ± SD) | −0.1 ± 1.0 | −0.4 ± 0.8 | <0.001b | ||
| P-value for the mean difference from baseline to 3 months | 0.324a | <0.001a | |||
| At 6 months (mean ± SD) | 230 | 7.4 ± 1.2 | 154 | 7.1 ± 1.2 | |
| Changes from baseline to 6 months (mean ± SD) | −0.1 ± 1.0 | −0.4 ± 1.0 | 0.003b | ||
| P-value for the mean difference from baseline to 6 months | 0.09a | <0.001a | |||
| At 9 months (mean ± SD) | 210 | 7.5 ± 1.2 | 155 | 7.0 ± 1.1 | |
| Changes from baseline to 9 months (mean ± SD) | −0.2 ± 1.1 | −0.5 ± 1.0 | 0.007b | ||
| P-value for the mean difference from baseline to 9 months | 0.019a | <0.001a | |||
| At 12 months (mean ± SD) | 310 | 7.5 ± 1.2 | 155 | 7.0 ± 1.1 | |
| Changes from baseline to 12 months (mean ± SD) | −0.01 ± 1.0 | −0.5 ± 1.0 | 0.003b | ||
| P-value for the mean difference from baseline to 12 months | 0.816a | <0.001a | |||
CGM, continuous glucose monitoring; HbA1c, hemoglobin A1c; SD, standard deviation.
aP-values were derived from a paired t-test.
bP-values were derived from a two-sample t-test.