Table 1.
Demographic and Clinical Characteristics by BMI Group
| Normal (n=158) | Overweight (n=48) | Obese (n=90) | Test | df | p | |
|---|---|---|---|---|---|---|
| Demographics | ||||||
| Age at baseline | 16.0±1.5a | 16.2±1.7a | 15.4±1.5b | F=6.16 | 2, 293 | 0.002 |
| Sex (n, % male) | 45 (28.5%) | 13 (27.1%) | 31 (34.4%) | χ2=1.21 | 2 | 0.55 |
| Race (n, % Caucasian) | 128 (81.6%) | 42 (87.5%) | 77 (85.6%) | χ2=1.23 | 2 | 0.54 |
| Depression | ||||||
| Number of MDD episodes | 1.3±0.6 | 1.3±0.7 | 1.4±0.6 | F=0.26 | 2, 286 | 0.77 |
| Duration of depression (months) | 21.9±19.8 | 28.6±25.4 | 22.2±20.1 | F=1.94 | 2, 287 | 0.15 |
| CDRS-R | 58.4±10.4 | 59.4±10.7 | 59.8±10.0 | F=0.55 | 2, 293 | 0.58 |
| BDI | 20.3±11.6 | 20.6±12.2 | 20.4±12.6 | F=0.01 | 2, 291 | 0.99 |
| Age at onset of current MDD | 14.1±2.1a | 13.6±2.6ab | 13.4±2.2b | F=2.88 | 2, 287 | 0.06 |
| Chronic depression (n, % Yes) | 91 (58.7) | 27(57.4) | 49 (54.4) | χ2=0.43 | 2 | 0.81 |
| Comorbidity | ||||||
| SCARED | 30.1±16.4 | 29.5±15.2 | 29.6±14.7 | F=0.06 | 2, 289 | 0.95 |
| History of PTSD (n, % Yes) | 13 (8.3) | 4 (8.3) | 5 (5.6) | FET | - | 0.79 |
| History of abuse (n, % Yes) | 43 (28.1)a | 13 (28.3)ab | 12 (13.6)b | χ2=7.10 | 2 | 0.03 |
| BHS | 10.1±5.2 | 10.5±5.9 | 10.6±5.8 | F=0.32 | 2, 286 | 0.73 |
| Functional status/Severity | ||||||
| CGAS | 50.6±7.8 | 50.9±8.8 | 50.6±7.2 | F=0.03 | 2, 291 | 0.98 |
| CGI-S | 4.5±0.7 | 4.5±0.7 | 4.4±0.6 | F=0.51 | 2, 292 | 0.60 |
| SIQ-Jr | 40.9±21.5 | 41.2±23.7 | 40.2±22.0 | F=0.04 | 2, 289 | 0.96 |
| Drug use | ||||||
| Drug use (n, % Yes) | 86 (55.1) | 25 (52.1) | 46 (51.7) | χ2=0.32 | 2 | 0.85 |
| Drug severity | 13.1±19.6a | 10.6±20.1ab | 6.5±14.5b | KWχ2=9.37 | 2 | 0.009 |
| Family conflict | ||||||
| CBQ-A | 9.4±6.3 | 7.7±5.6 | 8.5±6.3 | F=1.59 | 2, 287 | 0.21 |
| CBQ-P | 9.7±6.1 | 8.7±6.4 | 9.6±5.9 | F=0.46 | 2, 279 | 0.63 |
Data are mean±SD unless otherwise indicated.
Items with different superscripts are significantly different at α<0.017
BMI, body mass index; MDD, Major depressive disorder; PTSD, posttraumatic stress disorder; FET, Fisher's exact test; CDRS, Children's Depression Rating Scale (Poznanski et al, 1985); BDI, Beck Depression Inventory (Beck et al. 1988); SCARED, Self-Report for Childhood Anxiety Related Disorders (Birmaher et al. 1997); BHS, Beck Hopelessness Scale (Beck et al. 1974); CGAS, Children's Global Assessment Scale (Shaffer et al. 1983); CGI-S, Clinical Global Impressions-Severity subscale (Guy 1976); SIQ-Jr, Suicidal Ideation Questionnaire Junior High School version (Reynolds and Mazza 1999); CBQ-A, Conflict Behavior Questionnaire - Adolescent (Robin and Weiss 1980); CBQ-P, Conflict Behavior Questionnaire - Parent (Robin and Weiss 1980); KW: Kruskal-Wallis test.