Table 1.
Distribution of demographic variables among compensatory behavior groups
| Variables | No Compensatory Behaviors (n =113) | Single Compensatory Behaviors (n =135) | Multiple Compensatory Behaviors (n =150) | Total Sample (n =398) | Test Statistic | ||||
|---|---|---|---|---|---|---|---|---|---|
| Mean±SD | Mean±SD | Mean±SD | Mean±SD | ||||||
| Age (years) | 13.8±2.7 | 14.9±2.0 | 15.5±1.6 | 14.9±2.2 | F(2,395)=21.89; p<.001*** | ||||
| BMI | 19.3±7.9 | 19.9±5.2 | 20.7±3.7 | 20.08±5.7 | F(2,395)=2.31; p=.101 | ||||
| n | % | n | % | n | % | n | % | ||
| Gender | |||||||||
| Male | 14 | 3.5 | 16 | 4.0 | 5 | 1.2 | 35 | 8.8 | χ2 (2, N=398)=8.9; p=.01** |
| Female | 99 | 24.9 | 119 | 28.9 | 145 | 36.4 | 363 | 91.2 | |
| Ethnicity | |||||||||
| White | 86 | 21.8 | 103 | 26.0 | 99 | 25.0 | 288 | 72.4 | χ2(6, N=395)=11.3; p=.81 |
| Black | 12 | 3.0 | 12 | 3.0 | 10 | 2.5 | 34 | 8.5 | |
| Hispanic | 9 | 2.3 | 14 | 3.5 | 29 | 7.3 | 52 | 13.1 | |
| Other | 6 | 1.5 | 5 | 1.3 | 10 | 2.5 | 21 | 5.3 | |
| DSM-IV TR Diagnosis | |||||||||
| AN | 50 | 12.6 | 48 | 12.0 | 34 | 8.5 | 132 | 33.2 | χ2(4,N=398)=45.1;p=.001*** |
| BN | 0 | 0.0 | 14 | 3.5 | 40 | 10.0 | 54 | 13.6 | |
| EDNOS | 63 | 15.8 | 73 | 18.3 | 76 | 19.0 | 212 | 53.3 | |
Note: BMI=Body Mass Index; DSM-IV TR=Diagnostic and Statistical Manual of Mental Disorder Fourth Edition, Text Revision; AN=Anorexia Nervosa; BN=Bulimia Nervosa; EDNOS=Eating Disorder Not Otherwise Specified.
*
p<.05
**
p<.01
***
p<.001