Table 1.
Summary Statistics for the Classification Model Sample by Sex (total n = 2,315)
| Mean | SD | Range | % Missing | ||
|---|---|---|---|---|---|
| Inattention (Wave 1)a | Males | 0.83 | 1.19 | (0, 6) | 14.60 |
| Females | 0.53 | 0.92 | (0, 6) | 18.10 | |
|
| |||||
| Inattention (Wave 2)a | Males | 0.72 | 1.13 | (0, 6) | 14.16 |
| Females | 0.50 | 0.95 | (0, 6) | 13.83 | |
|
| |||||
| Inattention (Wave 3)a | Males | 0.85 | 1.31 | (0, 6) | 13.02 |
| Females | 0.58 | 1.07 | (0, 6) | 14.09 | |
|
| |||||
| Hyperactivity/Impulsivity (Wave 1)b | Males | 1.13 | 1.67 | (0, 8) | 14.86 |
| Females | 0.92 | 1.46 | (0, 8) | 18.36 | |
|
| |||||
| Hyperactivity/Impulsivity (Wave 2)b | Males | 0.57 | 1.27 | (0, 8) | 14.34 |
| Females | 0.43 | 1.05 | (0, 8) | 13.49 | |
|
| |||||
| Hyperactivity/Impulsivity (Wave 3)b | Males | 0.35 | 0.98 | (0, 8) | 12.76 |
| Females | 0.38 | 0.96 | (0, 8) | 13.83 | |
|
| |||||
| BMI z-score (Wave 3) | Males | −0.14 | 0.98 | (−4.75, 2.86) | 15.03 |
| Females | −0.24 | 0.89 | (−3.68, 2.73) | 11.44 | |
|
| |||||
| EDI Bulimia (Wave 3) | Males | 0.46 | 1.18 | (0, 11) | 12.76 |
| Females | 0.51 | 1.46 | (0, 21) | 9.14 | |
|
| |||||
| EDI Drive for Thinness (Wave 3) | Males | 0.88 | 1.75 | (0, 20) | 16.35 |
| Females | 2.84 | 4.20 | (0, 21) | 13.49 | |
|
| |||||
| EDI Body Dissatisfaction (Wave 3) | Males | 2.24 | 3.66 | (0, 24) | 11.63 |
| Females | 5.66 | 6.21 | (0, 24) | 7.17 | |
|
| |||||
| YSR Anxiety/Depression (Wave 3) | Males | 2.89 | 3.37 | (0, 25) | 11.71 |
| Females | 5.67 | 5.01 | (0, 24) | 6.66 | |
Abbreviations: EDI = Eating Disorder Inventory-2; SD = standard deviation; YSR = Youth Self-Report
a
Levels of ordinal variable assigned values 0–6 in order to calculate summary statistics.
b
Levels of ordinal variable assigned values 0–8 in order to calculate summary statistics.