Table 6.

Frequencies of perceived misdiagnoses of specific psychiatric conditions as a function of age of autism diagnosis.

	Age of autism diagnosis
	<18		18–24		25–34		35–44		45–54		≥55
	n	%	n	%	n	%	n	%	n	%	n	%
Personality disorders	2	0.7	21	19.4	46	24.6	44	18.8	24	11.9	3	3
Anxiety disorders	2	0.7	8	7.4	26	13.9	16	6.8	17	8.4	7	7.1
Mood disorders	0	0	10	9.3	14	7.5	18	7.7	17	8.4	11	11.1
Chronic fatigue syndrome/burnout-related disorders	1	0.4	3	3.8	9	4.8	18	7.7	12	6.0	5	5.1
Attention-deficit/hyperactivity disorder	9	3.3	4	3.7	6	3.2	5	2.1	7	3.5	1	1
Post-traumatic stress disorder/trauma-related disorders	0	0	1	0.9	4	2.1	5	2.1	5	2.5	0	0
Fibromyalgia	0	0	0	0	3	1.6	1	0.4	2	1	1	1
Eating disorders	0	0	0	0	2	1.1	0	0	0	0	0	0
Substance use disorders	0	0	0	0	0	0	0	0	1	0.5	0	0
Oppositional defiant disorder/conduct disorder	0	0	0	0	1	0.5	0	0	0	0	0	0