Table 1.

Descriptive Statistics

	7 Months					15 Months					24 Months
	N	M or %	SD	min	max	N	M or %	SD	min	max	N	M or %	SD	min	max
Child Age (months)	1133	7.72	1.48	5.04	15.36	1070	15.60	1.32	13.44	22.32	1014	24.84	1.94	22.2	35.4
Child Race (% Black)	1133	41.6%	—	—	—	1070	43.2%	—	—	—	1014	42.1%	—	—	—
Child Sex (% Female)	1133	49.2%	—	—	—	1070	49.0%	—	—	—	1014	49.3%	—	—	—
Positive Parenting	1088	2.90	0.79	1.00	4.80	1020	2.79	0.80	1.00	5.00	963	2.90	0.81	1.00	4.80
Negative Parenting	1088	2.41	0.77	1.00	5.00	1020	2.27	0.70	1.00	5.00	963	2.43	0.86	1.00	5.00
Maternal Depression	1129	0.37	0.54	0.00	3.33	1066	0.46	0.65	0.00	4.00	1001	0.41	0.64	0.00	4.00
IPV (% in IPV Group)	923	28.6%	—	—	—	851	20.1%	—	—	—	809	18.6%	—	—	—
Socioeconomic Risk	1131	0.00	0.66	−2.08	1.98	1067	0.01	0.67	−2.01	2.00	1014	0.01	0.63	−2.21	2.17
Emotional Reactivity	1018	0.10	0.21	0.00	0.96	843	0.37	0.31	0.00	1.00	769	0.37	0.34	0.00	0.98
Child Cortisol T1 (ln μg/dl)	1106	−1.88	0.69	−3.91	0.22	991	−1.99	0.76	−4.27	0.49	939	−2.08	0.73	−4.42	0.25
Child Cortisol T2 (ln μg/dl)	1002	−1.77	0.73	−4.27	0.38	943	−1.83	0.81	−4.34	0.72	942	−2.07	0.77	−4.20	0.40
Child Cortisol T3 (ln μg/dl)	934	−1.87	0.67	−3.86	0.21	878	−1.83	0.82	−4.40	0.80	917	−2.13	0.75	−4.27	0.48
Mother Cortisol (ln μg/dl)	1112	−2.00	0.62	−4.07	0.25	886	−2.41	0.64	−4.47	−0.21	851	−2.30	0.65	−4.18	−0.42
Time of day (hh:mm)	1133	13:31	2:52	8:11	20:08	1070	13:57	2:54	8:45	20:24	1014	13:48	3:12	8:20	20:46

IPV: Intimate Partner Violence; T1: baseline; T2: 20-min post-peak; T3: 40-min post-peak