Statistical model parameter estimates
| Linear multilevel regression model to estimate change from baseline HbA1c (%) | |||||
|---|---|---|---|---|---|
| Variable | Category | Effect on CfB HbA1c % | 95% CI | Category p value | Variable p value |
| Baseline HbA1c | – | −0.53 | (−0.55 to −0.51) | <0.001 | <0.001 |
| Age | – | −0.01 | (−0.02 to −0.01) | <0.001 | <0.001 |
| Serum cholesterol | – | 0.10 | (0.07 to 0.13) | <0.001 | <0.001 |
| BMI | – | 0.00 | (−0.01 to 0.01) | 0.747 | 0.747 |
| Year (2008=Ref) | 2009 | 0.11 | (0.07 to 0.15) | <0.001 | <0.001 |
| Sex (female=Ref) | Male | 0.15 | (0.08 to 0.22) | <0.001 | <0.001 |
| Ethnicity (white=Ref) | South Asian | 0.14 | (0.04 to 0.24) | 0.005 | <0.001 |
| black | −0.02 | (−0.14 to 0.09) | 0.705 | ||
| Townsend (least=Ref) | Medium | 0.07 | (−0.03 to 0.16) | 0.158 | 0.3013 |
| High | 0.08 | (−0.03 to 0.19) | 0.161 | ||
| Treatment (Metformin Only=Ref) | Combined Oral | 0.54 | (0.40 to 0.68) | <0.001 | <0.001 |
| Insulin | 0.98 | (0.83 to 1.13) | <0.001 | ||
| Metformin to Combined Oral | 0.36 | (0.19 to 0.54) | <0.001 | ||
| Any to Insulin | 1.11 | (0.92 to 1.30) | <0.001 | ||
| Diabetes duration (0–2 years=Ref) | >2 years | 0.30 | (0.21 to 0.40) | <0.001 | <0.001 |