Table 3.
Associations between macronutrient intake and mathematical model BCF parameters
| Unit | β-cell glucose sensitivity | β-cell potentiation factor | β-cell rate sensitivitya | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Tertiles | ||||||||||
| n = 303 | n = 303 | First (n = 101) ≤ 148.40 pmol/m2/mM | Second (n = 101) 148.40–348.77 pmol/m2/mM | |||||||
| βb | 95% CI | βb | 95% CI | ORc | 95% CI | ORc | 95% CI | |||
| Total carbohydrate | 50 g | Model 1 | − 0.07 | − 0.17, 0.04 | − 0.08 | − 0.21, 0.04 | 0.94 | 0.81, 1.11 | 1.03 | 0.89,1.19 |
| Model 2 | − 0.03 | − 0.22, 0.17 | − 0.09 | − 0.34, 0.15 | 0.98 | 0.72, 1.35 | 1.26 | 0.92, 1.71 | ||
| Polysaccharide | 50 g | Model 1 | − 0.05 | − 0.16, 0.06 | − 0.18* | − 0.31, − 0.05 | 1.18 | 0.93, 1.50 | 1.02 | 0.80, 1.28 |
| Model 2 | − 0.08 | − 0.22, 0.07 | − 0.24* | − 0.43, − 0.05 | 1.51* | 1.06, 2.15 | 1.03 | 0.74, 1.44 | ||
| Mono- and disaccharide | 50 g | Model 1 | − 0.05 | − 0.15, 0.06 | 0.03 | − 0.09, 0.15 | 0.76* | 0.60, 0.96 | 1.04 | 0.84, 1.28 |
| Model 2 | 0.01 | − 0.14, 0.16 | 0.01 | − 0.17, 0.19 | 0.82 | 0.57, 1.17 | 1.26 | 0.91, 1.75 | ||
| Fiber | 10 g | Model 1 | 0.08 | − 0.03, 0.18 | − 0.09 | − 0.21, 0.04 | 0.97 | 0.75, 1.27 | 1.04 | 0.80, 1.35 |
| Model 2 | 0.21* | 0.08, 0.33 | 0.01 | − 0.16, 0.17 | 0.85 | 0.59, 1.21 | 1.14 | 0.81, 1.60 | ||
| Total protein | 10 g | Model 1 | − 0.01 | − 0.12, 0.09 | 0.01 | − 0.11, 0.14 | 0.97 | 0.87, 1.07 | 0.99 | 0.89, 1.10 |
| Model 2 | − 0.04 | − 0.18, 0.10 | 0.02 | − 0.15, 0.20 | 0.99 | 0.85, 1.15 | 1.03 | 0.89, 1.18 | ||
| Animal protein | 10 g | Model 1 | − 0.03 | − 0.13, 0.08 | 0.10 | − 0.03, 0.23 | 0.89 | 0.66, 1.20 | 0.99 | 0.74, 1.31 |
| Model 2 | − 0.05 | − 0.18, 0.07 | 0.06 | − 0.10, 0.22 | 0.96 | 0.85, 1.07 | 1.00 | 0.90, 1.11 | ||
| Vegetable protein | 10 g | Model 1 | 0.02 | − 0.09, 0.13 | − 0.18* | − 0.30, − 0.05 | 0.99 | 0.86, 1.14 | 1.03 | 0.90, 1.18 |
| Model 2 | 0.12 | − 0.10, 0.33 | − 0.24 | − 0.50, 0.03 | 0.97 | 0.59, 1.61 | 0.90 | 0.55, 1.45 | ||
| Total fat | 50 g | Model 1 | 0.00 | − 0.11, 0.11 | − 0.01 | − 0.14, 0.11 | 0.86 | 0.57, 1.30 | 0.98 | 0.66, 1.44 |
| Model 2 | 0.10 | − 0.07, 0.26 | − 0.06 | − 0.26, 0.15 | 1.28 | 0.65, 2.53 | 1.43 | 0.76, 2.71 | ||
| Saturated fat | 10 g | Model 1 | − 0.05 | − 0.16, 0.05 | 0.01 | − 0.12, 0.13 | 0.95 | 0.79, 1.15 | 1.08 | 0.91, 1.28 |
| Model 2 | − 0.16 | − 0.33, 0.01 | − 0.01 | − 0.23, 0.21 | 1.09 | 0.77, 1.55 | 1.52* | 1.08, 2.12 | ||
| trans fat | 1 g | Model 1 | − 0.12* | − 0.23, − 0.01 | − 0.02 | − 0.14, 0.11 | 0.94 | 0.81, 1.09 | 1.03 | 0.91, 1.18 |
| Model 2 | − 0.14* | − 0.26, − 0.01 | 0.08 | − 0.08, 0.25 | 0.88 | 0.73, 1.07 | 1.11 | 0.93, 1.31 | ||
| MUFA | 10 g | Model 1 | 0.05 | − 0.06, 0.16 | 0.00 | − 0.12, 0.13 | 0.90 | 0.72, 1.14 | 0.93 | 0.75, 1.17 |
| Model 2 | 0.16* | 0.02, 0.31 | − 0.05 | − 0.22, 0.13 | 1.12 | 0.79, 1.58 | 1.07 | 0.77, 1.48 | ||
| N-3 PUFA | 1 g | Model 1 | 0.07 | − 0.03, 0.17 | − 0.04 | − 0.16, 0.07 | 0.17 | 0.01, 3.24 | 0.02* | 0.00, 0.38 |
| Model 2 | 0.04 | − 0.07, 0.15 | − 0.04 | − 0.17, 0.10 | 0.36 | 0.01, 11.45 | 0.01* | 0.00, 0.44 | ||
| N-6 PUFA | 1 g | Model 1 | 0.07 | − 0.04, 0.17 | − 0.07 | − 0.19, 0.05 | 0.99 | 0.96, 1.03 | 0.98 | 0.95, 1.02 |
| Model 2 | 0.04 | − 0.08, 0.17 | − 0.07 | − 0.22, 0.09 | 1.01 | 0.96, 1.06 | 0.98 | 0.93, 1.02 | ||
| Cholesterol | 100 mg | Model 1 | − 0.03 | − 0.13, 0.08 | 0.13 | − 0.01, 0.26 | 0.94 | 0.76, 1.16 | 0.91 | 0.74, 1.13 |
| Model 2 | − 0.04 | − 0.17, 0.09 | 0.20* | 0.02, 0.37 | 0.91 | 0.68, 1.20 | 0.94 | 0.71, 1.25 | ||
Model 1: adjusted for age and sex, baseline BCF and follow-up insulin resistance
Model 2: adjusted for model 1 and BMI, mean arterial blood pressure, anti-hypertensive medication, lipid-modifying medication, family history of T2DM, total energy intake, and intake of dietary fiber, polysaccharide and MUFA
aTertiles of rate sensitivity were not adjusted for baseline rate sensitivity
bPositive values mean an improvement of the specific BCF parameter
cGroup 3 (the group with the best rate sensitivity > 349 pmol/m2/mM) is the reference group
*p value < 0.05