TABLE 2.

Chronology of comorbid eating disorder and substance use disorder onset

Substance disorder	BN + SUD BN precedes	BN + SUD SUD precedes	BN + SUD same age of onset	AN + SUD AN precedes	AN + SUD SUD precedes	AN + SUD Same age of onset
Illicit drug disorder	57% (n =12)	39% (n = 8)	5% (n = 1)	33% (n = 3)	67% (n = 6)	—
Alcohol disorder	70% (n = 14)	15% (n = 3)	15% (n = 3)	67% (n = 6)	33% (n = 3)	—
Caffeine disorder	70% (n = 9)	23% (n = 3)	8% (n = 1)	50% (n = 3)	50% (n = 3)	—
Regular smoking	52% (n = 16)	39% (n = 12)	10% (n = 3)	36% (n = 9)	60% (n = 15)	4% (n = 1)

Note: Only those women with age of onset information for both disorders were included. BN + SUD, bulimia nervosa and substance use disorder; BN precedes, bulimia nervosa age of onset precedes substance disorder onset; SUD precedes, substance use disorder age of onset precedes eating disorder onset; same age of onset, reported age of onset for eating disorder and substance use disorder the same; AN + SUD, anorexia nervosa and substance use disorder.