Table 1.
Characteristics of patients with Bulimia Nervosa (BN) and Controls (CTR)a
| BN | CTR | Stat | |
|---|---|---|---|
| Number enrolled | 16 | 17 | |
| Number completing both scans | 15 | 14 | |
| Mean Age (years) | 24.4 +/− 5.1 | 24.9 +/− 4.2 | p=0.85 |
| Mean weight (pounds) | 132.1 +/− 14.3 | 125.0 +/− 16.1 | p=0.21 |
| Mean BMI (kg/m2) | 21.7 +/− 1.4 | 21.4 +/− 2.0 | p=0.78 |
| Race | 13 Caucasian | 10 Caucasian | χ2=1.96; p=0.26 |
| 3 non-Caucasian (2 mixed Caucasian; 1 Native American) | 7 non-Caucasian (4 mixed Caucasian; 1 Asian; 2 Hispanic) | ||
| Smoking Statusb | 4 current/past smokers (1 current smoker; 2 light smokers; 1 past smoker) | 2 current/past smokers (2 past smokers) | χ2=1.87; p=0.225 |
| 12 non-smokers | 15 non-smokers | ||
| EDE-OBE | 35.4 +/− 29.1 | 0.0 +/− 0.0 | p<0.01 |
| EDE-SBE | 22.0 +/− 25.1 | 0.0 +/− 0.0 | p<0.01 |
| EDE-Purge | 68.3 +/− 74.4 | 0.0 +/− 0.0 | p<0.01 |
| Mean BDI score | 15.6 +/− 9.0 | 0.3 +/− 1.0 | p<0.001 |
| Hormonal Stage at time of PET | 11 Follicular phase | 13 Follicular phase | χ2=0.67; p=0.685 |
| 5 Luteal Phase | 3 Luteal phase | ||
| 1 unknown | |||
| Duration of illness | 7.8 years | ||
| # seeking inpatient treatment | 11 | ||
| # seeking outpatient treatment | 5 |
a
Abbreviations: BN = Bulimia Nervosa; CTR = Healthy Control participants; N = number of participants; BMI = Body Mass Index (kilograms per square meter); EDE = Eating Disorder Examination; OBE = Objective Binge Episodes (in month prior to study); SBE = Subjective Binge Episodes (in month prior to study); BDI = Beck Depression Inventory; PET = positron emission tomography.
b
Smoking status was subdivided into current smokers (defined as regularly smoking 1 pack per week or more), light smokers (defined as smoking less than 1 pack per week, or other irregular/”social” smoking); past smokers; and non-smokers.