Table 4.
Models Predicting BMI Percentile and Body Fat
| Calories as Reported on the YAQ | Calories Inflated by 34% for Girls with BMI% > 85% | |||||||
|---|---|---|---|---|---|---|---|---|
| BMI Percentile | Percent Body Fat | BMI Percentile | Percent Body Fat | |||||
| Beta | SE | Beta | SE | Beta | SE | Beta | SE | |
| Intercept | 116.83 | 38.45 | 51.20 | 11.38 | 73.87 | 38.78 | 38.58 | 11.22 | 
| Age | −0.054 | 0.05 | −0.07 | 0.018*** | −0.07 | 0.05 | −0.08 | 0.02*** | 
| White | −7.20 | 3.74* | −2.63 | 1.14* | −8.96 | 3.62** | −3.15 | 1.09** | 
| Min/day of accel. wear-time | −0.071 | 0.05 | −0.04 | 0.016* | −0.03 | 0.05 | −0.02 | 0.02 | 
| Cross-sectional | ||||||||
| Total calories | −0.01 | 0.01 | −0.00 | 0.00 | 0.02 | 0.00*** | 0.01 | 0.00*** | 
| Snack (junk) calories | −0.02 | 0.01* | −0.01 | 0.00 a | −0.03 | 0.01*** | −0.01 | 0.00** | 
| Fruit and vegetable servings | 1.56 | 1.17 | 0.23 | 0.35 | −2.64 | 1.14* | −0.96 | 0.33** | 
| # trips to food outlets | 0.83 | 0.85 | 0.38 | 0.25 | 0.54 | 0.85 | 0.29 | 0.24 | 
| # trips where SOFAS consumed | −1.12 | 0.72 | −0.22 | 0.21 | −1.69 | 0.72* | −0.38 | 0.21 a | 
| Sedentary PA (minutes/day) | 0.02 | 0.04 | 0.02 | 0.01 | 0.00 | 0.04 | 0.01 | 0.01 | 
| Moderate PA (minutes/day)– | 0.74 | 0.27** | 0.26 | 0.08** | 0.84 | 0.26** | −0.28 | 0.08*** | 
| Vigorous PA (minutes/day) | 0.01 | 0.51 | −0.13 | 0.15 | 0.18 | .51 | −.17 | 0.15 | 
| Takes Physical education | 8.98 | 5.26 | 2.81 | 1.55 a | 9.39 | 5.24 a | .87 | 0.51 a | 
| Prospective (Change over time) | ||||||||
| Total calories | 0.004 | 0.002** | 0.001 | 0.00 a | 0.002 | 0.00 | 0.00 | 0.001 | 
| Snack (junk) calories | −0.007 | 0.003* | −0.003 | 0.00* | −0.01 | 0.00* | −0.00 | 0.00 a | 
| Fruit and vegetable servings | 0.03 | 0.40 | −0.16 | 0.16 | 0.42 | 0.40 | 0.06 | 0.15 | 
| # trips to food outlets | −0.38 | 0.18* | −0.01 | 0.07 | −0.37 | 0.19* | −.00 | 0.07 | 
| # trips where SOFAS consumed | −0.13 | 0.16 | −0.12 | 0.06 a | −0.12 | 0.16 | −0.12 | 0.06 a | 
| Sedentary PA (minutes/day) | 0.01 | 0.01 | 0.00 | 0.00 | 0.01 | 0.01 | 0.00 | 0.00 | 
| Moderate PA (minutes/day) | 0.02 | 0.06 | 0.01 | 0.02 | 0.02 | 0.06 | 0.01 | 0.02 | 
| Vigorous PA (minutes/day) | −0.06 | 0.11 | −0.09 | 0.04* | −0.04 | 0.11 | −0.08 | 0.04 a | 
| Enrolled in Physical education | 1.11 | 0.88 | 0.70 | 0.35* | 1.08 | 0.88 | 0.7 | 0.35* | 
= p< .10
= p < .05
=p<.01
=p<.001