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	59.03^a	ns	.02
Days with mother since Birth	144.27	36.53	163.51	5.41	3.17	37.58^a	.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 to infant arrival	14.11	5.26	11.89	4.28	1.99	72	.05	.05
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

Adjusted for unequal variance.

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

^**

Includes only mothers who work.