Table 3.
Relationship between CC knowledge scores and the age and HbA1c levels of patients with T1DM by simple regression analysis
| Independent variables | Unstandardised coefficients | Standard coefficient | t-value | P value | Collinearity Statistics |
Model summary | |||
| B | SE | Beta | Tolerance | VIF | R2 | P value | |||
| Constant | 27.485 | 1.804 | 15.239 | <0.0001 | |||||
| Age | −0.159 | 0.062 | −0.170 | −2.573 | 0.011 | 1.00 | 1.00 | 0.029 | 0.011 |
| Constant | 35.967 | 2.885 | 12.465 | <0.0001 | |||||
| HbA1c levels | −1.561 | 0.343 | −0.292 | −4.549 | <0.0001 | 1.00 | 1.00 | 0.085 | <0.0001 |
B, unstandardised beta (rate of change per unit time); CC, carbohydrate counting; HbA1c, glycated haemoglobin; R2, coefficient of variation value; T1DM, type 1 diabetes mellitus; VIF, variance inflation factor.