Table 2.

Variables in regression analysis.

Type	Variable name	Variable explanation
Control	Age in Months	Child age in months
	Gender	Male (reference), Female
	Race/Ethnicity	White (reference), Asian,
		Black, Hispanic, Native
		American, Other
	Site	Binary indicator of clinical site
Independent	Intrauterine	Degree of intrauterine
	Drug/Alcohol	drug/alcohol exposure: 1
		(none), 12 (severe)
	Current Relational	Degree of current relational
	Health	health: 1 (poor), 12 (positive)
	Perinatal—Adversity/Stress	Number of experiences rated
		10–12 in Perinatal Part A: 0–6
	Perinatal—Relational	Number of experiences rated
	Experiences	10–12 in Perinatal Part B: 0–6
	Infancy—Adversity/Stress	“”
	Infancy—Relational	“”
	Experiences
	Early	“”
	Childhood—Adversity/Stress
	Early	“”
	Childhood—Relational
	Experiences
	Childhood—Adversity/Stress	“”
	Childhood—Relational	“”
	Experiences
	Youth—Adversity/Stress	“”
	Youth—Relational	“”
	Experiences
Dependent	Factor 1	Self-Regulation
	Factor 2	Sensory Integration
	Factor 3	Cognitive
	Factor 4	Relational