Table 2.
Number of cases (n), prevalence (%), relative risk (RR) and 95% CI (confidence interval) of psychiatric comorbidity according to eating disorder status in the Binge Eating in Rio survey (n = 2297), 2020
| Psychiatric comorbidity | BED n = 29 | BN n = 17 | RBE n = 90 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | ||||||||||
| n (%) | RR | 95% CI | RR | 95% CI | n (%) | RR | 95% CI | RR | 95% CI | n (%) | RR | 95% CI | RR | 95% CI | |
| Depression (PHQ-9)ª | 21 (81.7) | 8.1 | 6.4–10.3 | 7.1 | 5.3–9.6 | 13 (82.9) | 7.9 | 6.1–10.1 | 6.9 | 4.9–9.9 | 35 (29.7) | 2.9 | 1.9–4.3 | 2.8 | 1.9–4.3 |
| Anxiety (GAD-7)b | 22 (76.9) | 7.1 | 5.5–9.2 | 5.8 | 4.3–7.7 | 10 (63.1) | 5.5 | 3.4–9.1 | 4.5 | 2.8–7.4 | 39 (30.3) | 2.8 | 1.9–4.0 | 2.6 | 1.7–3.9 |
| ADHD (ASRS-6)c | 12 (35.8) | 8.8 | 4.1–18.7 | 10.3 | 4.3–24.7 | 8 (54.3) | 13.1 | 6.1–28.1 | 13.8 | 6.8–28.0 | 17 (19.0) | 4.9 | 2.8–8.6 | 4.9 | 2.7–9.0 |
| Alcohol use (AUDIT)d | 5 (15.9) | 2.0 | 0.6–6.0 | 0.9 | 0.3–2.8 | 4 (23.5) | 5.3 | 2.2–12.8 | 6.3 | 2.6–15.1 | 12 (12.2) | 1.5 | 0.8–3.0 | 1.2 | 0.6–2.4 |
Model 1 Univariate Poisson regression; Model 2 Poisson regression adjusted by BMI, gender, race/skin color
Calculations of Relative Risk and 95% confidence intervals were adjusted for survey weights
Values in bold indicate statistically significant at a p-value < 0.05
BED binge eating disorder (DSM-5), BN bulimia nervosa (DSM-5), RBE recurrent binge eating (≥ 1 binge eating episode/week in the last 3 months). PHQ-9 Patient Health Questionnaire-9, GAD-7 7-item Generalized Anxiety Disorder Scale, ADHD attention-deficit/hyperactivity disorder, ASRS Adult ADHD Self-Report Scale, AUDIT Alcohol Use Disorder Identification Test
aDepression: Assessed using a PHQ-9 with cutoff point ≥ 10
bAnxiety: Assessed using a GAD-7 with cutoff point ≥ 10
cADHD: Assessed using a ASRS with cutoff point ≥ 14
dAlcohol use: assessed by AUDIT cutoff scores = a score of > 8