Early Life Stress and Child Temperament Style as Predictors of Childhood Anxiety and Depressive Symptoms: Findings from the Longitudinal Study of Australian Children

Table 5

Odds ratios for anxiety and depressive symptoms at age 4 years attributable to person-environment interaction between early life stress and impulsive temperament style.

			Anxiety and Depressive Symptoms at 4 years
Group	Infant impulsivity	Stress exposure		Noncase	Case	OR^†	95% CI^†		PPV	AR%
low/low	low	Low	Reference	1079	94	1.0
low/high	low	High	ORe^†	515	62	1.4	(1.00-2.0)		11%	29%
high/low	high	Low	ORp^†	687	73	1.2	(0.90-1.7)		10%	19%
high/high	high	High	ORpe^†	305	50	1.9	(1.30-20.8)		14%	48%
	Total			2586	279
				Expected ORpe		Departure from		% of ORpe attributable
				assuming no joint action (E)		expected (DE)		to the joint action of
								person and environment
		Additive model of interaction		ORe+ORp-1		ORpe-E		DE/ORpe
				1.7		0.2		11%

^†OR: odds ratio, 95% CI: 95% confidence interval, ORe: lnfant stress exposure, ORp: infant temperament, ORpe: infant temperament and stress exposure, Reference: neither exposure; AR%: attributable risk percent, PPV: positive predictive value.