Table 3.

Comparison of 24-Month Sample by Baseline Adaptive Level (N=154)

	Total (N=154)	Low (N=91, 59.1%)	Moderately Low (N=55, 35.7%)	Adequate or above (N=8, 5.2%)	P
	N	N (%)	N (%)	N (%)
Gender					0.63
Boy	116	66 (56.9)	44 (37.9)	6 (5.2)
Girl	38	25 (16.2)	11 (28.9)	2 (5.3)
Age group (baseline)					0.01
3 to 6 years	65	31 (47.7)	30 (46.2)	4 (6.2)
7 to 11 years	63	37 (58.7)	22 (34.9)	4 (6.3)
12 to 17 years	26	23 (88.5)	3 (11.5)	0 (0)
Race/ethnicity					0.07
White	43	23 (53.5)	18 (41.9)	2 (4.7)
Hispanic	78	47 (60.3)	30 (38.5)	1 (1.3)
Other	33	21 (63.6)	7 (21.2)	5 (15.2)
Insurance					0.16
Commercial	101	54 (53.5)	41 (40.6)	6 (5.9)
Medi-Cal	53	37 (69.8)	14 (26.4)	2 (3.8)
Primary Language					0.25
English	134	77 (57.5)	49 (36.5)	8 (6.0)
Other language	20	15 (75.0)	5 (25.0)	0 (0)
Parent marital/partnership status					0.09
Married/partnered	113	61 (54.0)	46 (40.7)	6 (5.3)
Unmarried/unpartnered	41	30 (73.2)	9 (22.0)	2 (4.9)
History of Special Education	87	59 (67.8)	23 (26.4)	5 (5.7)	0.04
History of ABA (any)	35	25 (71.4)	9 (25.7)	1 (2.9)	0.27
History of Occupational Therapy	73	42 (57.5)	28 (38.4)	3 (4.1)	0.72
History of Speech Therapy	106	62 (58.5)	38 (35.8)	6 (5.7)	0.92
Full ABA dose (≥80%)	43	24 (55.8)	17 (39.5)	2 (4.7)	0.81
Vineland ABC Change ≥2.5 at 12 months (MCID)	90	63 (70.0)	25 (27.8)	2 (2.2)	<.01
Vineland ABC Change ≥2.5 at 24 months (MCID)	83	57 (68.7)	24 (28.9)	2 (2.4)	0.02

Percentages are by row. ABC= Adaptive Composite; ABA= Applied Behavior Analysis; MCID= Minimal clinically important difference. This table shows chi-square tests comparing baseline adaptive level groups on study variables with a sample (N=154) of children referred for ABA in 2016 or later.