Table 1.

Demographic and clinical participant characteristics by Mini PAS-ADD case status

	Positive screen				Negative screena (N = 40)		Total (N = 129)		Analysisb
	Current (N = 73)		Lifetime (N = 89)
	Mean (range)	SD	Mean (range)	SD	Mean (range)	SD	Mean (range)	SD	t	p
Age (years)
Ascertainment	10.9 (2.9–25.9)	5.8	10.9 (2.9–27.9)	5.8	10.9 (1.4–26.2)	5.9	10.9 (1.4–27.9)		−0.04	0.9
Follow-up	36.3 (26.1–50.5)	6	36.3 (26.1–54.4)	6.1	36.5 (27.0–50.5)	5.6	36.4 (26.1–54.4)		0.15	0.46
Duration of follow-up	25.4 (22.3–28.2)	1.2	25.4 (22.2–29.3)	1.3	25.6 (21.8–29.2)	1.3	25.4 (21.8–29.3)		0.86	0.35

	N	%	N	%	N	%	N	%	χ2	p
IQ									1.58	0.67
Normal (>69)	16	21.9	23	25.8	8	20	31	24
Mild IDc (50–69)	21	28.8	24	27	15	37.5	39	30.2
Severe IDc/untestable (<50)	35	47.9	39	43.8	16	40	55	42.6
Missing	1	1.4	3	3.4	1	2.5	4	3.1
Original group	59	80.8	72	80.9	35	87.5	107	82.9	0.85	0.36
Male	52	71.2	66	74.2	31	77.5	97	75.1	0.17	0.68
Seizure Disorder Present	29	39.7	35	39.3	18	45	53	41.1	0.37	0.55
Caregiver-reported Psychiatric Diagnosis Present	30	41.1	35	39.3	9	22.5	44	34.1	3.48	0.06
Psychotropic medication use	48	65.8	56	62.9	19	47.5	75	58.1	2.7	0.1

^aNegative screen indicates no endorsement of elevated scales for current or lifetime symptoms

^bComparison between lifetime positive and negative screen groups

^cID: intellectual disability