Table 1.

Demographic Characteristics of Adoptive and Birth Samples

	Adoptive (N=37)		Birth (N=37)
	M	SD	M	SD	t	df	p≤	η2p
Infant
Age (days)	165.49	8.99	163.51	5.41	1.14	59.03a	Ns	.02
Days with mother since Birth	144.27	36.53	163.51	5.41	3.17	37.58a	.002	.12
Birth weight (g)	3213.57	595.53	3658.24	497.05	3.49	72	.001	.14
Newborn adjustment Scale (1–5)	1.59	.96	1.95	1.10	1.46	72	Ns	.03
Neonatal number of Difficulties (0–10)	.72	.78	1.66	1.00	4.41	69	.001	.22
Schedule	5.53	.91	5.19	1.37	1.24	71	Ns	.02
Mother
Sociodemographic variables
Age (at birth)	36.30	4.55	34.50	3.52	1.91	72	.06	.05
Education(Hollingshead)	6.49	.73	6.49	.69	.00	72	ns	.001
SES (Hollingshead)	58.49	6.58	59.28	6.08	.54	72	ns	.004
Years employed prior	14.11	5.26	11.89	4.28	1.99	72	.05	.05
To infant arrival
Hours of employment per week**	29.27	12.23	35.14	8.47	1.82 a	41	ns	.07
Context variables
Satisfaction with role Balance (1–5)	4.00	.94	4.09	1.00	.38	69	ns	.002
Childcare: Quality	4.14	2.99	4.37	3.05	.32	68	ns	.001
Childcare: Type*	1.83	1.13	1.74	.87	.36	68	ns	.002
Pregnancy losses	1.08	1.40	.31	.76	2.86	69	.01	.11
Difficulty becoming a Parent (1–5)	3.76	1.57	2.34	1.24	4.23	70	.001	.20
Social Support: Spouse	3.30	.53	3.15	.93	.84	72	Ns	.01
Social Support: Extended family	1.53	.95	1.76	1.00	1.00	72	ns	.01
Social Support: Community	2.13	.73	1.72	.77	2.36	72	.02	.07

^aAdjusted for unequal variance.

^*For ease of interpretation, data shown based on standardized scores.

^**Includes only mothers who work.