Table 4 Subgroup analysis of HbA1c regression
Subgroup | Studies | Mean difference | 95% CI | p | I2 | Difference between subgroups (p) |
|---|---|---|---|---|---|---|
HbA1c at baseline | 0.524 | |||||
< 8% | 10 | -0.24 | -0.36, -0.11 | < 0.001 | 85.8 | |
≥ 8% | 13 | -0.33 | -0.56, -0.09 | 0.007 | 90.6 | |
Insulin use at baseline | 0.798 | |||||
No participants | 6 | -0.31 | -0.53, -0.10 | 0.004 | 89.3 | |
Some / all participants or unspecified | 17 | -0.27 | -0.45, -0.10 | 0.002 | 89.9 | |
Duration of sensor wear | 0.867 | |||||
≤ 28 days | 13 | -0.30 | -0.50, -0.09 | 0.004 | 87.3 | |
≥ 29 days | 10 | -0.27 | -0.46, -0.08 | 0.005 | 90.4 | |
Use of glucometer in control group | 0.622 | |||||
No | 8 | -0.34 | -0.61, -0.07 | 0.015 | 90.0 | |
Yes | 15 | -0.26 | -0.42, -0.10 | 0.002 | 87.8 | |
CGM feedback with 2-way communication | 0.891 | |||||
No | 10 | -0.30 | -0.48, -0.12 | 0.001 | 90.8 | |
Yes | 13 | -0.28 | -0.49, -0.07 | 0.010 | 86.3 | |
Behaviour tracking in intervention group | 0.392 | |||||
No | 10 | -0.35 | -0.53, -0.17 | < 0.001 | 88.2 | |
Yes | 13 | -0.23 | -0.43, -0.03 | 0.026 | 88.7 | |