TABLE 3.
Comparison of metabolic traits by macronutrient pattern in BetaGene participants1
| P value2 | ||||||
| Low fat (65% carbohydrate, 20% fat, 15% protein) | Moderate fat (54% carbohydrate, 28% fat, 18% protein) | High fat (44% carbohydrate, 35% fat, 21% protein) | High vs. low fat | High vs. moderate fat | For trend across all groups | |
| n | 392 | 520 | 238 | |||
| Anthropometric measurements | ||||||
| BMI, kg/m2 | 28.7 ± 0.3 | 28.9 ± 0.3 | 29.9 ± 0.4 | 0.015 | 0.023 | 0.022 |
| Body fat percentage, % | 33.1 ± 0.3 | 33.6 ± 0.3 | 34.5 ± 0.5 | 0.014 | 0.08 | 0.015 |
| Trunk fat, kg | 12.1 ± 0.3 | 12.4 ± 0.3 | 13.6 ± 0.4 | 0.002 | 0.009 | 0.003 |
| Waist circumference, cm | 92.6 ± 0.7 | 92.4 ± 0.6 | 95.3 ± 1.0 | 0.019 | 0.006 | 0.036 |
| Waist-hip ratio | 0.88 ± 0.01 | 0.88 ± 0.01 | 0.88 ± 0.01 | 0.70 | 0.77 | 0.62 |
| OGTT-derived measures | ||||||
| Fasting glucose, mmol/L | 5.0 ± 0.1 | 5.0 ± 0.1 | 5.0 ± 0.1 | 0.39 | 0.81 | 0.35 |
| 2-h Glucose, mmol/L | 7.1 ± 0.1 | 7.1 ± 0.1 | 7.0 ± 0.1 | 0.83 | 0.58 | 0.90 |
| Fasting insulin, pmol/L | 41 ± 2 | 41 ± 1 | 43 ± 2 | 0.56 | 0.51 | 0.61 |
| 30-min ΔInsulin, pmol/L | 346 ± 6 | 355 ± 5 | 353 ± 8 | 0.69 | 0.94 | 0.64 |
| 2-h Insulin, pmol/L | 327 ± 13 | 336 ± 13 | 346 ± 18 | 0.37 | 0.64 | 0.36 |
| IVGTT-derived measures | ||||||
| AIR, pmol/L x 10 min | 2996 ± 56 | 2912 ± 52 | 3122 ± 89 | 0.51 | 0.27 | 0.62 |
| SI, x 10−3 min−1 per pmol/L | 2.71 ± 0.07 | 2.69 ± 0.07 | 2.40 ± 0.10 | 0.008 | 0.012 | 0.014 |
| Disposition Index | 7849 ± 148 | 7511 ± 133 | 7101 ± 153 | 0.039 | 0.23 | 0.043 |
| Serum lipids, mg/dL | ||||||
| Total cholesterol | 168 ± 2 | 170 ± 2 | 167 ± 3 | 0.68 | 0.28 | 0.81 |
| HDL cholesterol | 45 ± 1 | 46 ± 1 | 47 ± 1 | 0.12 | 0.43 | 0.11 |
| LDL cholesterol | 99 ± 1 | 99 ± 1 | 97 ± 2 | 0.39 | 0.20 | 0.48 |
| TG | 93.1 ± 3.0 | 92.8 ± 2.9 | 89.6 ± 3.9 | 0.45 | 0.49 | 0.47 |
Values are age- and sex-adjusted geometric mean ± SE. SE was computed by the Delta method. AIR, acute insulin response; IVGTT, intravenous glucose tolerance; OGTT, oral-glucose-tolerance test; SI, insulin sensitivity.
Derived from generalized estimating equations, adjusted for age and sex.