Table 4.
Estimated proportions predicted by logistic regression of intention status on each outcome, unadjusted and adjusted with inverse propensity weights: Births to women aged 20–44 from the NSFG 2002, 2006–2010
| Maternal Behaviors and Infant Health Outcomes | Intended | Mistimed <2 Years | Mistimed 2+ Years | Unwanted | n |
|---|---|---|---|---|---|
| Estimated Proportions, Unadjusted | |||||
| Recognized pregnancy in first 6 weeks | 0.82 | 0.73* | 0.66* | 0.68* | 4,158 |
| Prenatal care in first trimester | 0.93 | 0.88* | 0.84* | 0.83* | 4,182 |
| Breast-fed (any length) | 0.74 | 0.77 | 0.64* | 0.58* | 4,137 |
| Breast-fed exclusively for first 6 months | 0.22 | 0.23 | 0.15 | 0.13* | 2,531 |
| Breast-fed for at least 1 year | 0.27 | 0.24 | 0.20 | 0.28 | 2,117 |
| Preterm | 0.10 | 0.12 | 0.12 | 0.15* | 4,184 |
| Low birth weight | 0.06 | 0.06 | 0.08 | 0.12* | 4,184 |
| Estimated Proportions, Adjusted With Inverse Propensity Weights | |||||
| Recognized pregnancy in first 6 weeks | 0.81 | 0.74 | 0.67* | 0.70* | 4,158 |
| Prenatal care in first trimester | 0.92 | 0.89 | 0.89 | 0.81* | 4,182 |
| Breast-fed (any length) | 0.71 | 0.73 | 0.65 | 0.62* | 4,137 |
| Breast-fed exclusively for first 6 months | 0.22 | 0.29 | 0.17 | 0.13 | 2,531 |
| Breast-fed for at least 1 year | 0.26 | 0.31 | 0.22 | 0.29 | 2,117 |
| Preterm | 0.10 | 0.15 | 0.11 | 0.13 | 4,184 |
| Low birth weight | 0.06 | 0.06 | 0.09 | 0.11* | 4,184 |
*
p ≤ .05 (significant difference with intended births)