Table 2. The modification effect of sex on the association between the CLOCK SNP, rs1801260, and BMI z-scores.
| BMI z-scores | |||||
|---|---|---|---|---|---|
| Coefficient | 95% confidence interval | P | |||
| Baseline | |||||
| rs1801260 | GG | 0.151 | -0.624 | 0.926 | 0.703 |
| AG | -0.191 | -0.730 | 0.348 | 0.488 | |
| AA | Reference | ||||
| Sex _girl | -0.645 | -1.208 | -0.082 | 0.025 | |
| Sex × rs1801260 | GG | 0.787 | -0.579 | 2.152 | 0.259 |
| AG | 0.879 | 0.091 | 1.667 | 0.029 | |
| AA | Reference | ||||
| Follow-up | |||||
| rs1801260 | GG | -0.323 | -1.220 | 0.573 | 0.479 |
| AG | -0.305 | -0.923 | 0.313 | 0.333 | |
| AA | Reference | ||||
| Sex _girl | -0.585 | -1.242 | 0.072 | 0.081 | |
| Sex × rs1801260 | GG | 1.306 | -0.615 | 3.226 | 0.183 |
| AG | 1.069 | 0.137 | 2.001 | 0.024 | |
| AA | Reference | ||||
Linear mixed-effects models adjusted for age, sex, race, screen time, and family and school clusters. At the follow-up, assigned nutrition education group was also controlled in the model.