Table 2.
Differences between patients with and without night-eating behavior (NEB)
| Demographic and anthropometric data | With NEB (N = 20) | Without NEB (N = 101) | Stats | p |
|---|---|---|---|---|
| Mean ± SD / N (%) | Mean ± SD / N (%) | |||
| Age (years) | 45.6 ± 7.81 | 44.05 ± 11.61 | 0.74 | 0.464 |
| Gender (female) | 14 (70%) | 80 (79.2%) | 0.37 | 0.542 |
| Body mass index (kg/m2) | 48 ± 9.01 | 46.87 ± 6.39 | 0.00 | 0.994 |
| Psychiatric comorbidity | ||||
| Mood disorders | 12 (60%) | 43 (42.6%) | 1.40 | 0.236 |
| Major depressive disorder | 1 (5%) | 14 (13.9%) | – | 0.461 |
| Bipolar spectrum disorders | 11 (55%) | 29 (28.7%) | 4.09 | 0.043 |
| Bipolar disorder type 1 | 3 (15%) | 2 (2%) | – | 0.031 |
| Bipolar disorder type 2 | 6 (30%) | 15 (14.9%) | 1.72 | 0.190 |
| Cyclothymia or other specified BDs | 2 (10%) | 12 (11.9%) | – | 0.999 |
| Panic disorder | 5 (25%) | 17 (16.8%) | 0.30 | 0.584 |
| Eating disorders | 11 (55%) | 32 (31.7%) | 3.01 | 0.083 |
| Binge-eating disorder | 10 (50%) | 31 (30.7%) | 1.98 | 0.159 |
| Bulimia nervosa | 2 (10%) | 4 (4%) | – | 0.258 |
| Eating and mood disorders comorbidity | 9 (45%) | 19 (18.8%) | 5.05 | 0.025 |
| Night-Eating Questionnaire (NEQ) | ||||
| Morning anorexia | 1.6 ± 1.05 | 1.75 ± 0.93 | 0.10 | 0.275 |
| Mood/sleep | 4.4 ± 3.02 | 2.78 ± 2.15 | – 0.20 | 0.027 |
| Bulimic Investigatory Test, Edinburgh (BITE) | ||||
| Symptom score | 17.9 ± 7.62 | 12.31 ± 8.22 | – 0.27 | 0.004 |
| Severity score | 2.45 ± 2.48 | 1.36 ± 1.76 | – 0.21 | 0.024 |
| Symptom Checklist—90—Revised (SCL-90-R) | ||||
| Somatization | 1.25 ± 0.85 | 0.73 ± 0.57 | – 0.22 | 0.016 |
| Obsessive compulsion | 0.75 ± 0.52 | 0.49 ± 0.63 | – 0.23 | 0.011 |
| Interpersonal sensitivity | 0.81 ± 0.78 | 0.57 ± 0.63 | – 0.12 | 0.206 |
| Depression | 0.9 ± 0.78 | 0.56 ± 0.58 | – 0.18 | 0.055 |
| Anxiety | 0.76 ± 0.66 | 0.45 ± 0.48 | – 0.16 | 0.076 |
| Hostility | 0.49 ± 0.51 | 0.34 ± 0.51 | – 0.15 | 0.113 |
| Phobic anxiety | 0.44 ± 0.49 | 0.16 ± 0.38 | – 0.23 | 0.010 |
| Paranoid ideation | 0.79 ± 0.77 | 0.52 ± 0.59 | – 0.12 | 0.177 |
| Psychoticism | 0.54 ± 0.67 | 0.24 ± 0.38 | – 0.21 | 0.020 |
| Sleep | 1.28 ± 1.18 | 0.64 ± 0.83 | – 0.23 | 0.011 |
| Global Severity Index | 0.81 ± 0.61 | 0.49 ± 0.47 | – 0.20 | 0.027 |
Student’s t and Wilcoxon’s r are reported as summary statistics for comparisons of continuous variables, χ2 for chi-squared tests. p < 0.05 are shown in bold