Table 1. Characteristics of youth participants.
| Intervention | Control | P* | |
|---|---|---|---|
| Baseline (n = 121) | n = 60 | n = 61 | |
| Age (years, mean, sd) | 9.12 (0.37) | 9.18 (0.53) | 0.45 |
| Sex (male, %, n) | 55% (33) | 57% (35) | 0.79 |
| Race (white, %, n) | 77% (46) | 85% (52) | 0.23 |
| Screen time (≤3 hours/day, %, n) | 85% (51) | 80% (49) | 0.5 |
| BMI z-scores (mean, sd) | 0.08 (0.94) | -0.08 (1.17) | 0.4 |
| Obesitya (%, n) | 5% (3) | 8% (5) | 0.48 |
| Overweighta (%, n) | 7% (4) | 8 (5) | 0.75 |
| rs1801260 (G allele, MAFb) | 0.33 | 0.34 | 0.96 |
| rs9939609 (A allele, MAFb) | 0.38 | 0.34 | 0.62 |
| 12 mo Follow-up (n = 109) | n = 55 | n = 54 | |
| Age | 10.67 (0.36) | 10.59 (0.3) | 0.19 |
| Sex (male, %, n)) | 56% (31) | 61% (33) | 0.62 |
| Race (white, %,n) | 78% (43) | 83% (45) | 0.5 |
| Screen time (≤3 hours/day, %, n) | 87% (47) | 76% (41) | 0.13 |
| BMI z-scores | 0.06 (1.04) | -0.2 (1.26) | 0.26 |
| Obesity (%, n) | 7.3% (4) | 5.6% (3) | 0.72 |
| Overweight (%,n) | 9% (5) | 15% (8) | |
| rs1801260 (G allele, MAFb) | 0.33 | 0.31 | 0.73 |
| rs9939609 (A allele, MAFb) | 0.36 | 0.36 | 0.97 |
*t test and chi-squared test were used to estimate the p values.
aObesity and overweight were classified according to the CDC criteria.
bMAF is the minor allele frequency