Table 2.
Estimated age of onset and persistence of DSM-IV eating disorders and related entities
| Anorexia Nervosa | Bulimia Nervosa | Binge Eating Disorder | Subthreshold Binge Eating Disorder | Any Binge Eating | |
|---|---|---|---|---|---|
| Age of onset | |||||
| Mean (se) | 18.9 (0.8) | 19.7 (1.3) | 25.4 (1.2) | 22.7 (1.9) | 22.4 (1.1) |
| Median (IQR) | 18.0 (16.0–22.0) | 18.0 (14.0–22.0) | 21.0 (17.0–32.0) | 20.0* (17.0–27.0) | 20.0* (16.0–27.0) |
| Years with episode | |||||
| Mean (se) | 1.7 (0.2) | 8.3* (1.6) | 8.1* (1.1) | 7.2* (2.0) | 8.7* (0.7) |
| Median (IQR) | 1.0 (1.0–1.0) | 5.0* (2.0–13.0) | 4.0* (1.0–10.0) | 2.0* (1.0–10.0) | 3.0* (1.0–13.0) |
| 12-month persistence, % (se) | 0.0 (--) | 30.6* (7.2) | 44.2* (6.0) | 47.2* (10.0) | 46.9* (4.1) |
| (n) | (23) | (52) | (115) | (46) | (192) |
Abbreviations: se, standard error; IQR, interquartile range.
*
Significantly different from anorexia nervosa based on a .05 level, two-sided test.