Table 1.

Descriptive statistics of main study variables across all ages.

	Age 4		Age 5		Age 7		Age 10
	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Internalizing Symptoms	3.96	4.23	4.63	5.13	4.52	5.00	5.65	6.16
Square Root (Internalizing)	1.66	1.10	1.82	1.16	1.78	1.17	2.00	1.28
Anxiety/Depression	1.91	2.47	2.62	3.18	2.48	3.09	2.82	3.19
Somatic Symptoms	0.77	1.31	0.77	1.42	1.09	1.65	1.67	2.36
Withdrawal Symptoms	1.33	1.55	1.31	1.64	1.03	1.50	1.19	1.75
Baseline Vagal Tone	5.85	1.18	6.08	1.15	6.53	1.21	6.44	1.21
Vagal Withdrawal	0.28	0.60	0.25	0.72	0.79	0.78	0.57	0.82
Socioeconomic Status	42.42	10.67	42.99	10.58	44.56	11.66	44.15	11.98
Maternal Internalizing	49.13	9.12	49.04	8.75	46.74	8.27	47.00	8.68
Child Externalizing	10.53	6.79	10.20	7.60	7.67	6.40	5.82	6.23