Table 3.

Changes in Mental Health Score at Baseline and at 2-, 4-, and 6-Year Follow-up, National Longitudinal Survey of Youth, 1997^a

Measureb	Teenage Parenthood Model			Sex Interaction Model			Final Model With Quadratic Time Effect
	Parameter Estimate	SE	P Value	Parameter Estimate	SE	P Value	Parameter Estimate	SE	P Value
Interceptc	9.883	0.156	<0.001	9.742	0.162	<0.001	9.736	0.164	<0.001
Year (0 = year 0, 2 = 2-year follow-up, etc.)	0.099	0.016	<0.001	0.152	0.019	<0.001	0.163	0.052	0.002
Teenage parenthood	−0.414	0.130	0.001	−0.226	0.161	0.163	−0.225	0.161	0.163
Male	0.822	0.108	<0.001	1.227	0.157	<0.001	1.345	0.165	<0.001
Teenage parenthood × year	−0.007	0.027	0.806	−0.073	0.033	0.025	−0.073	0.033	0.025
Male × year				−0.150	0.033	<0.001	−0.347	0.088	<0.001
Teenage parenthood × male				−0.535	0.264	0.043	−0.536	0.264	0.042
Teenage parenthood × male × year				0.190	0.055	<0.001	0.191	0.055	<0.001
Year × year							−0.002	0.008	0.816
Male × year × year							0.035	0.014	0.016
Percent of poverty level	−0.0001	0.0003	0.691	−0.0001	0.0003	0.690	−0.0001	0.0003	0.690
Paternal education	0.029	0.116	0.846	0.031	0.148	0.833	0.031	0.148	0.835
Maternal education	−0.099	0.136	0.467	−0.102	0.136	0.455	−0.101	0.136	0.458
Both biologic parents in home (age 2)	−0.037	0.117	0.748	−0.039	0.117	0.741	−0.040	0.117	0.734
No. of children in home	−0.042	0.108	0.697	−0.043	0.108	0.693	−0.044	0.108	0.687
Parental monitoring (residential)	0.020	0.019	0.295	0.020	0.019	0.297	0.020	0.019	0.298
Parental relationship quality (residential)	0.034	0.014	0.016	0.034	0.014	0.016	0.034	0.014	0.016
PIAT score, percentile	0.004	0.002	0.063	0.004	0.002	0.069	0.004	0.002	0.067
Residential location	−0.026	0.125	0.834	−0.027	0.125	0.826	−0.027	0.125	0.830
Difference in months, baseline to year 0	0.007	0.005	0.140	0.007	0.005	0.141	0.008	0.005	0.107

Abbreviations: PIAT, Peabody Individual Achievement Test; SE, standard error.

^aValues represent unstandardized coefficients.

^bPercent of poverty level, parental monitoring, parental relationship quality, PIAT score, and difference in months between 1997 baseline interview and year 0 were centered on the grand means.

^cIntercept is the year 0 mental health score for individuals who do not become teenage parents when all continuous variables are at their grand mean and all categorical variables are equal to 0.