Table 1.

Weighted Means of Sample Characteristics by Relationship Status at Baseline

	All	Married	Cohabiting	Nonresident
Relationship Status at Baseline		.53	.27	.20
FAMILY BACKGROUND
Mother and Father lived w/ both biological parents at age 15 (yes/no)	.33	.47	.21	.11
Only Father lived w/ both biological parents at age 15 (yes/no)	.23	.24	.26	.18
Only Mother lived w/ both biological parents at age 15 (yes/no)	.20	.18	.18	.24
Neither Mother nor Father lived w/ both biological parents at age 15 (yes/no)	.24	.10	.35	.47
UNION INSTABILITY (Married and Cohabiting only)
Union dissolves by 1 year after birth of child	.08	.02	.20	--
Union dissolves by 3 years after birth of child*	.16	.07	.34	--
Union dissolves by 5 years after birth of child*	.25	.16	.44	--
DEMOGRAPHIC AND SOCIOECONOMIC STATUS
Mother is Black, non-Hispanic	.37	.19	.46	.73
Mother's age	26.9 (.16)	29.2 (.39)	25.20 (.21)	22.90 (.28)
Mother has less than HS degree	.27	.18	.37	.37
Mother has HS degree	.34	.26	.41	.47
Mother has some college	.20	.22	.20	.15
Mother has college degree or more	.18	.34	.01	.01
ATTITUDINAL MEASURES (Mothers')
Parents should stay together for the children even if they don't get along (1–4)	1.94 (.04)	2.00 (.06)	1.85 (.03)	1.91 (.05)
RELATIONSHIP QUALITY
Mother feels supported by father (range= 1–3)	2.69 (.02)	2.73 (.03)	2.70 (.01)	2.57 (.02)
N	3,069	715	1,345	1,009

Note: Means are weighted by city sampling means. Number of cases (Ns) are not weighted. Jacknife standard errors are in parentheses. All variables are measured at baseline, except for union dissolution which is measured 1 year after the birth of the child.

^*Sample sizes for union dissolution by the 3rd year after the child's birth are 702 and 1,291 for married and cohabiting parents, respectively. The corresponding sample sizes for union dissolution by the 5th year after the child's birth are 680 (married) and 1,285 (cohabiting).