Table 3.
Predictors of class membership
| Mild to Severe, Increasing (3.7%, n=48) | Mild, Stable (15.8%, n=199) | Average, Decreasing (11.3%, n=143) | None to Average, Increasing (21%, n=264) | |||||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Variable | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI |
|
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| Preterm sample (N=1,256) | ||||||||
|
| ||||||||
| Education, less than high school | 2.98 | 0.44, 20.49 | 1.52 | 0.23, 10.19 | 0.94 | 0.17, 5.26 | 1.87 | 0.54, 6.51 |
| Education, some college or more | 1.44 | 0.30, 6.87 | 2.46 | 0.36, 16.65 | 0.59 | 0.27, 1.29 | 1.08 | 0.43, 2.69 |
| Marital status, not married or living with a partner | 1.32 | 0.40, 4.35 | 5.47 | 0.48, 62.17 | 0.91 | 0.43, 1.96 | 1.96 | 0.83, 4.62 |
| Prenatal substance use, any | 1.06 | 0.23, 4.96 | 1.02 | 0.28, 3.76 | 0.97 | 0.28, 3.30 | 1.59 | 0.75, 3.41 |
| White race vs. other | 0.32 | 0.07, 1.48 | 1.89 | 0.58, 6.11 | 0.60 | 0.25, 1.46 | 1.22 | 0.58, 2.57 |
| Preeclampsia | 2.19 | 0.69, 6.92 | 0.59 | 0.18, 1.94 | 0.86 | 0.16, 4.56 | 0.77 | 0.25, 2.42 |
| Prenatal depression | 3.89 | 0.37, 41.39 | 4.59 | 1.53, 13.76 | 3.39 | 0.46, 25.05 | 1.10 | 0.13, 9.34 |
|
| ||||||||
| Full-term sample (N=10,064) | ||||||||
|
| ||||||||
| Average, Decreasing (29.2%, n=2,939) | Moderate, Stable (4.3%, n=438) | None to Mild, Increasing (5.9%, n=597) | Mild, Stable (22.6%, n=2,271) | |||||
|
| ||||||||
| White race | 1.46 | 0.96, 2.20 | 0.63 | 0.31, 1.28 | 0.37 | 0.11, 1.22 | 1.47 | 0.96, 2.24 |
| Other race | 1.17 | 0.73, 1.88 | 0.75 | 0.40, 1.40 | 0.44 | 0.09, 2.24 | 1.57 | 0.99, 2.48 |
| Hispanic | 0.32 | 0.13, 0.78 | 0.57 | 0.19, 1.71 | 0.68 | 0.19, 2.50 | 2.26 | 0.74, 6.89 |
| Education, less than high school | 0.92 | 0.61, 1.40 | 2.59 | 1.29, 5.21 | 2.06 | 0.98, 4.30 | 0.86 | 0.41, 1.81 |
| Education, some college or more) | 0.74 | 0.49, 1.10 | 0.81 | 0.41, 1.59 | 0.76 | 0.30, 1.96 | 2.33 | 1.52, 3.55 |
| Marital status, not married or living with a partner | 0.77 | 0.50, 1.18 | 0.89 | 0.38, 2.09 | 0.53 | 0.22, 1.28 | 3.02 | 1.68, 5.43 |
| Health insurance, any | 2.49 | 1.15, 5.36 | 2.32 | 1.00, 5.41 | 3.11 | 0.57, 16.82 | 0.90 | 0.40, 2.02 |
| Prenatal alcohol use | 1.43 | 0.86, 2.37 | 1.17 | 0.48, 2.84 | 0.83 | 0.19, 3.69 | 3.06 | 1.06, 8.80 |
| Prenatal tobacco use | 1.32 | 0.69, 2.51 | 1.90 | 1.11, 3.24 | 2.12 | 0.75, 5.98 | 1.19 | 0.63, 2.26 |
| Prenatal marijuana use | 1.35 | 0.65, 2.78 | 2.99 | 1.02, 8.76 | 2.33 | 0.38, 14.26 | 1.04 | 0.29, 3.78 |
| Preeclampsia | 1.06 | 0.54, 2.09 | 0.75 | 0.26, 2.20 | 0.80 | 0.08, 7.58 | 1.60 | 0.97, 2.61 |
| Prenatal depression | 1.40 | 0.67, 2.90 | 4.41 | 1.71, 11.36 | 2.19 | 0.38, 12.61 | 2.10 | 1.16, 3.81 |
The None/Little, Stable class served as the referent for both the preterm and full-term samples. Black race served as the reference group for race in the full-term sample. Due to the smaller sample size, any race other than White served as the reference group for the preterm sample. High school diploma served as the reference for education for both the preterm and full-term samples. Due to limited endorsement in the preterm sample, prenatal alcohol, tobacco, and marijuana use was collapsed into a binary response (yes/no), reflecting any substance use. CI, confidence interval; OR, odds ratio. Bold indicates significance.