Table 6.

Standardized bias estimates for unadjusted and IPW adjusted paired samples: Intended births compared with each of the other three intention status groups

Background Characteristics of Mother	Intended vs. Mistimed <2 Years		Intended vs. Mistimed 2+ Years		Intended vs. Unwanted
	Unadjusted	IPW Adjusted	Unadjusted	IPW Adjusted	Unadjusted	IPW Adjusted
Age 20–24	0.267	0.009	0.915	0.145	0.301	0.086
Age 25–29	0.024	0.039	0.288	0.029	0.177	0.014
Age 30–44	0.246	0.049	0.635	0.117	0.125	0.073
Married	0.234	0.031	0.813	0.172	0.620	0.131
Cohabiting	0.244	0.066	0.452	0.097	0.272	0.080
Not in Union	0.027	0.032	0.521	0.109	0.476	0.077
First Birth	0.135	0.068	0.061	0.139	0.506	0.205
Second Birth	0.045	0.078	0.189	0.052	0.262	0.054
Third Birth or Higher	0.087	0.145	0.130	0.083	0.755	0.146
Non-Hispanic White	0.042	0.116	0.389	0.141	0.415	0.148
Hispanic	0.109	0.195	0.091	0.080	0.169	0.125
Native-born Hispanic	0.008	0.101	0.119	0.069	0.184	0.128
Foreign-born Hispanic	0.141	0.151	0.008	0.038	0.047	0.042
Non-Hispanic Black	0.038	0.031	0.342	0.107	0.343	0.063
Non-Hispanic Other	0.186	0.065	0.066	0.037	0.028	0.028
Born Outside United States	0.071	0.143	0.050	0.033	0.043	0.026
Delivery Paid by Medicaid	0.199	0.027	0.686	0.188	0.547	0.207
High School Graduatea	0.008	0.160	0.307	0.120	0.360	0.082
Her Mother’s Education
<High school graduate	0.197	0.141	0.134	0.156	0.283	0.141
High school graduate	0.077	0.091	0.024	0.001	0.103	0.085
Some college or more	0.114	0.047	0.105	0.148	0.171	0.052

Notes: We consider values greater than 0.25 to indicate substantial differences between the two groups in the distribution of the specific characteristic. Interactions included in the model to reduce bias were age by race, race by union status, parity by union status, and Medicaid by union status.

^aMeasured at interview, not at time of birth.