Table 4.

Age of Onset, Duration, and Persistence of DSM-5 Eating Disorders

	AN	BN	BED
Current age
Mean (SE)	41.8 (0.96)	39.1 (2.45)	45.2 (1.21) ^a
Median (IQR)	42.2 (29.5–51.7)	38.3 (27.3–46.8)	46.0 (31.8–56.8)
Age of onset of ED
Mean (SE)	19.3 (0.06)	20.0 (0.55)	24.5 (0.31) ^a, ^b
Median (IQR)	17.4 (15.2–20.5)	16.0 (13.9–21.5)	21.1 (14.6–30.4)
Years with episode
Mean (SE)	11.4 (0.40)	12.2 (0.67)	15.9 (0.36) ^a, ^b
Median (IQR)	4.9 (1.6–16.3)	8.0 (3.6–18.3)	10.6 (3.5–24.4)
% 12-month persistence (SE)	9.4 (2.41)	54.7 (6.79) ^a	63.5 (3.87) ^a

Notes. ED = eating disorder; AN = anorexia nervosa; BN = bulimia nervosa; BED = binge eating disorder. SE = standard error; IQR = interquartile range. The analysis included those with lifetime diagnosis of AN, BN without lifetime AN, or BED without lifetime AN or BN;

significantly different from anorexia nervosa at p < .05 based on Tukey-Kramer post-hoc test or comparison of cells (17);

significantly different from bulimia nervosa at p < .05 based on Tukey-Kramer post-hoc test. Calculations of means, medians, and standard errors were adjusted for survey weights.