Table 1.
Demographic, psychiatric, and clinical characteristics of participants with a rapid response versus without a rapid response
| Rapid response (N = 51) |
No rapid response (N = 39) |
Test statistic | p value | Effect size |
|
|---|---|---|---|---|---|
| Age, mean (s.d.) | 47.94 (8.57) | 40.90 (9.23) | F(1, 88) = 13.97 | 0.000 | 0.137 |
| Female, n (%) | 28 (54.9%) | 28 (71.8%) | χ2(1) = 2.68 | 0.101 | 0.173 |
| Ethnicity, n (%) | χ2(2) = 0.15 | 0.928 | 0.041 | ||
| Caucasian | 39 (76.5%) | 31 (79.5%) | |||
| African–American | 7 (13.7%) | 5 (12.8%) | |||
| Hispanic–American or ‘other ’ | 5 (9.8%) | 3 (7.7%) | |||
| Education, n (%) | χ2(2) = 0.49 | 0.782 | 0.074 | ||
| College | 25 (49%) | 22 (56.4%) | |||
| Some college | 18 (35.3%) | 12 (30.8%) | |||
| High school or less | 8 (15.7%) | 5 (12.8%) | |||
| DSM-IV diagnoses, lifetime, n (%) | |||||
| Mood disorders | 23 (45.1%) | 21 (53.8%) | χ2(1) = 0.68 | 0.411 | 0.087 |
| Anxiety disorders | 17 (33.3%) | 22 (56.4%) | χ2(1) = 4.79 | 0.029 | 0.231 |
| Substance use disorders | 11 (21.6%) | 10 (25.6%) | χ2(1) = 0.21 | 0.651 | 0.048 |
| Age onset BED, mean (s.d.) | 27.94 (14.10) | 23.51 (9.59) | F(1, 88) = 2.84 | 0.096 | 0.031 |
| Clinical characteristics, mean (s.d.) | |||||
| Binge-eating days/month (EDE) | 14.0 (5.4) | 13.0 (6.0) | F(1, 88) = 0.79 | 0.378 | 0.009 |
| Binge-eating episodes/month (EDE) | 15.5 (7.3) | 15.0 (9.5) | F(1, 88) = 0.06 | 0.810 | 0.001 |
| Dietary restraint (EDE) | 1.6 (1.2) | 1.8 (1.2) | F(1, 88) = 0.67 | 0.416 | 0.008 |
| Eating concern (EDE) | 2.0 (1.4) | 2.0 (1.2) | F(1, 88) = 0.00 | 0.984 | 0.000 |
| Weight concern (EDE) | 3.3 (1.0) | 3.6 (1.1) | F(1, 88) = 1.13 | 0.291 | 0.013 |
| Shape concern (EDE) | 2.9 (0.8) | 3.2 (0.9) | F(1, 88) = 2.98 | 0.088 | 0.033 |
| Global Score (EDE) | 2.4 (0.8) | 2.6 (0.9) | F(1, 88) = 1.18 | 0.281 | 0.013 |
| Body mass index | 38.3 (5.5) | 39.1 (6.0) | F(1, 88) = 0.35 | 0.555 | 0.004 |
BED, Binge-eating disorder ; EDE, Eating Disorder Examination interview.
Test statistic = χ2 for categorical variables and F value from analyses of variance for dimensional variables. p values are for two-tailed tests. Effect size measures are φ coefficients for categorical variables and partial η2 for dimensional variables.