Table 4.
Multiple linear regression models of glycated hemoglobin percentage (%HbA1c; dependent variable) and energy-adjusted mineral intake by individuals with type 2 diabetes mellitus (T2DM).
| Independent Variables | β (95%CI) | p-value | r2 Adjusted | |
|---|---|---|---|---|
| Model 1 1 | Age (years) | −0.032 (−0.082; 0.019) | 0.216 | 0.143 |
| Sex § | 1.069 (0.209; 1.930) | 0.015 | ||
| Time of T2DM diagnosis (years) | 0.117 (0.051; 0.183) | 0.001 | ||
| Zinc intake (mg/day) | −0.017 (−0.283; 0.250) | 0.902 | ||
| Model 2 2 | Age (years) | −0.028 (−0.077; 0.021) | 0.259 | 0.198 |
| Sex § | 0.925 (0.086; 1.765) | 0.031 | ||
| Time of T2DM diagnosis (years) | 1.118 (0.054; 0.182) | <0.001 | ||
| Potassium intake (mg/day) | −0.001 (−0.002; 0.000) | 0.017 | ||
| Model 3 2 | Age (years) | −0.029 (−0.079; 0.021) | 0.253 | 0.151 |
| Sex § | 1.025 (0.163; 1.887) | 0.020 | ||
| Time of T2DM diagnosis (years) | 0.119 (0.053; 0.184) | 0.001 | ||
| Calcium intake (mg/day) | −0.001 (−0.003; 0.001) | 0.377 | ||
| Model 4 2 | Age (years) | −0.031 (0.080; 0.017) | 0.206 | 0.201 |
| Sex § | 1.009 (0.177; 1.840) | 0.018 | ||
| Time of T2DM diagnosis (years) | 0.117 (0.053; 0.181) | <0.001 | ||
| Magnesium intake (mg/day) | −0.007 (−0.012; −0.001) | 0.015 |
1 p-value of model: 0.002. 2 p-value of model: <0.001. β non-standardized. Variables included in the models in the continuous format and in the § dichotomous format. All models adjusted by sex, age and time of T2DM diagnosis. %HbA1c: glycated hemoglobin percentage; CI: confidence interval; T2DM: type 2 diabetes mellitus.