Table 1:

Baseline demographic and clinical characteristics of cohorts 1 year preceding first diagnosis of eating disorders or first date of antidepressant receipt (among those without eating disorders)

Variables	Eating Disorders	%	No Eating Disorders, Receiving Antidepressants	%
N	14,524	100%	110,051	100%
Current Age	17.5, 4.6		19.3, 4.7
Age at Index (years, SD)	15.9, 4.6		17.8, 4.7
Sex
Female	11,498	79.2%	71,926	65.4%
Male	2,802	19.3%	36,106	32.8%
Ethnicity
Not Hispanic or Latino	10,380	71.5%	71,506	65.0%
Unknown Ethnicity	2,272	15.6%	28,682	26.1%
Hispanic or Latino	1,872	12.9%	9,863	9.0%
Race
White	9,978	68.7%	71,849	65.3%
Black or African American	1,004	6.9%	11,884	10.8%
Other Race	856	5.9%	5,827	5.3%
Asian	452	3.1%	2,300	2.1%
Psychiatric disorders	14,524	100%	51,389	46.7%
Mood disorder [Major depressive disorder; bipolar disorders]	7,435	51.2%	24,840	22.6%
Generalized anxiety disorder	4,401	30.3%	8,608	7.8%
Obsessive-compulsive disorder	1,155	8.0%	1,159	1.1%
Posttraumatic stress disorder	1,484	10.2%	2,399	2.2%
Specific phobia	1,217	8.4%	1,217	1.1%
Panic disorder	911	6.3%	1,709	1.6%
Adjustment disorders	730	5.0%	2,408	2.2%
Attention-deficit/hyperactivity disorder	2,503	17.2%	9,210	8.4%
Autism spectrum disorder	1,208	8.3%	2,515	2.3%
Personality disorders	601	4.1%	540	0.5%
Borderline personality disorder	496	3.4%	378	0.3%
Gender dysphoria	565	3.9%	1,434	1.3%
Substance use disorders	1,176	8.1%	5,431	4.9%
Cannabis use disorders	651	4.5%	2,228	2.0%
Nicotine dependence	462	3.2%	2,664	2.4%
Alcohol use disorders	256	1.8%	919	0.8%
Other stimulant use disorders	62	0.4%	333	0.3%
Opioid use disorders	54	0.4%	390	0.4%