Table 3.
Associations between insulin sensitivity and dietary proportion variables using linear regression models (n = 44).
| Dependent Variable | Independent Variable | Unadjusted Model | Adjusted Model * | ||
|---|---|---|---|---|---|
| B-Coefficient (95% CI) |
p-Value | B-Coefficient (95% CI) |
p-Value | ||
| Proportions | |||||
| Matsuda Index | Proportion of morning calories (per 10%) | 3.3 (0.8 to 5.8) |
0.011 | 2.8 (0.3 to 5.2) |
0.03 |
| Proportion of evening calories (per 10%) | −1.7 (−4.2 to 0.8) |
0.17 | −1.9 (−4.4 to 0.6) |
0.13 | |
| QUICKI | Proportion of morning calories (per 10%) | 0.008 (0.001 to 0.013) |
0.018 | 0.006 (−0.0002 to 0.012) |
0.057 |
| Proportion of evening calories (per 10%) | −0.003 (−0.009 to 0.004) |
0.39 | −.003 (−0.009 to 0.003) |
0.28 | |
| Timing | |||||
| Matsuda Index | 25% total calorie intake (per hour) | −1.6 (−3.0 to −0.3) |
0.02 | −1.4 (−2.8 to −0.1) |
0.04 |
| 50% total calorie intake (per hour) | −1.0 (−2.3 to 0.3) |
0.14 | −1.0 (−2.3 to 0.2) |
0.10 | |
| 75% total calorie intake (per hour) | −0.3 (−2.2 to 1.7) |
0.77 | −0.9 (−2.9 to 1.0) |
0.34 | |
| QUICKI | 25% total calorie intake (per hour) | −0.004 (−0.008 to −0.001) |
0.01 | −0.004 (−0.007 to −0.001) |
0.02 |
| 50% total calorie intake (per hour) | −0.002 (−0.006 to 0.001) |
0.14 | −0.002 (−0.006 to 0.001) |
0.11 | |
| 75% total calorie intake (per hour) | −0.001 (−0.006 to 0.004) |
0.70 | −0.002 (−0.007, 0.003) |
0.41 | |
* The models were adjusted for age, sex, BMI, race, total daily energy intake and sleep timing.