Table 5.
Results of the Mann–Whitney U test on age, weight, height, BMI, SCL-90-R, BIS-11, BES, ORWELL-97, and MMPI-2 scales at T0.
| Variable | Median Group 1 (n = 65) |
Median Group 2-Dropout (n = 29) |
Mann–Whitney U Test | p-Value |
|---|---|---|---|---|
| Age | 50.00 | 46.00 | 1134.00 | 0.117 |
| Weight | 102.00 | 106.00 | 831.50 | 0.363 |
| Height | 1.65 | 1.65 | 961.00 | 0.879 |
| BMI | 36.65 | 36.98 | 855.00 | 0.474 |
| SCL-90-R | ||||
| Somatization (SOM) | 1.42 | 1.92 | 681.50 | 0.033 |
| Obsessive–Compulsive (O-C) | 1.30 | 1.50 | 762.50 | 0.140 |
| Interpersonal Sensitivity (I-S) | 1.00 | 1.78 | 673.00 | 0.027 |
| Depression (DEP) | 1.38 | 1.92 | 630.50 | 0.011 |
| Anxiety (ANX) | 1.00 | 1.20 | 799.00 | 0.239 |
| Hostility (HOS) | 0.67 | 1.00 | 745.50 | 0.106 |
| Phobic Anxiety (PHOB) | 0.29 | 0.71 | 620.00 | 0.008 |
| Paranoid Ideation (PAR) | 1.00 | 1.50 | 703.50 | 0.050 |
| Psychoticism (PSY) | 0.60 | 1.00 | 681.00 | 0.032 |
| Global Severity Index (GSI) | 1.04 | 1.47 | 619.00 | 0.008 |
| BIS | ||||
| Attentional (A) | 1.87 | 2.00 | 814.50 | 0.293 |
| Motor (M) | 1.90 | 2.09 | 801.00 | 0.246 |
| Non-planning (NP) | 2.45 | 2.54 | 890.50 | 0.670 |
| Total | 2.10 | 2.16 | 798.50 | 0.238 |
| BES | 17.00 | 25.00 | 696.00 | 0.043 |
| ORWELL-97 | 68.50 | 93.00 | 555.00 | 0.002 |
| MMPI-2 Validity Scales | ||||
| Infrequency (F) | 59 | 59 | 915.00 | 0.822 |
| Lie (L) | 50 | 52 | 928.00 | 0.905 |
| Correction (K) | 46 | 51 | 784.50 | 0.195 |
| MMPI-2 Clinical Scales | ||||
| Hypochondriasis (1-Hs) | 62 | 65 | 865.00 | 0.525 |
| Depression (2-D) | 62 | 68 | 753.00 | 0.120 |
| Hysteria (3-Hy) | 57 | 67 | 641.00 | 0.013 |
| Psychopathic Deviate (4-Pd) | 63 | 63 | 873.50 | 0.572 |
| Masculinity/Femininity (5-MF) | 48 | 50 | 848.50 | 0.441 |
| Paranoia (6-Pa) | 59 | 58 | 987.50 | 0.712 |
| Psychasthenia (7-Pt) | 56 | 57 | 905.50 | 0.762 |
| Schizophrenia (8-Sc) | 55 | 57 | 983.50 | 0.737 |
| Hypomania (9-Ma) | 48 | 48 | 908.50 | 0.780 |
| Social Introversion (0-Si) | 59 | 57 | 1004.00 | 0.614 |
| MMPI-2 Content Scales | 59 | 64 | 778.00 | 0.177 |
| Anxiety (ANX) | ||||
| Fears (FRS) | 52 | 57 | 833.50 | 0.371 |
| Obsessiveness (OBS) | 51 | 51 | 984.50 | 0.730 |
| Depression (DEP) | 56 | 67 | 658.50 | 0.020 |
| Health Concerns (HEA) | 62 | 62 | 918.00 | 0.841 |
| Bizarre Mentation (BIZ) | 54 | 50 | 1018.00 | 0.535 |
| Anger (ANG) | 51 | 48 | 970.50 | 0.818 |
| Cynicism (CYN) | 51 | 60 | 825.50 | 0.338 |
| Antisocial Practices (ASP) | 49 | 48 | 979.00 | 0.765 |
| Type A (TPA) | 50 | 47 | 1109.50 | 0.171 |
| Low Self-Esteem (LSE) | 55 | 57 | 963.00 | 0.866 |
| Social Discomfort (SOD) | 53 | 52 | 1003.50 | 0.617 |
| Family Problems (FAM) | 57 | 53 | 1014.50 | 0.555 |
| Work Interference (WRK) | 54 | 59 | 905.00 | 0.759 |
| Negative Treatment Indicators (TRT) | 56 | 58 | 868.50 | 0.544 |
Note: The median, Mann–Whitney U test results, and p-value for all the anthropometric and psychological factors are reported. n, sample size; weight (kg); height (m); BMI, body mass index (kg/m2); SCL-90-R, Symptom Checklist-90—Revised; MMPI-2, Minnesota Multiphasic Personality Inventory-2; BIS-11, Barratt Impulsiveness Scale-11; BES, Binge-Eating Scale; and ORWELL-97, Obesity-Related Well-Being Questionnaire. Statistically significant p-values (p < 0.05) are in bold.