Table 3.
Regression models for Brigance academic sub-score. * significant, p < 0.05.
| BRIGANCE ACADEMIC | |||
|---|---|---|---|
| Characteristic | Univariate Model B ± SE|p-Value |
Multivariate Model B ± SE|p-Value |
Fully Reduced Model B ± SE|p-Value |
| Treatment Group | |||
| 400 IU/day | Reference | Reference | Reference |
| 2000 IU/day | −4.37 ± 2.65|0.10 | −3.74 ± 2.37|0.117 | −2.49 ± 2.36|0.29 |
| 4000 IU/day | −3.92 ± 2.56|0.13 | −4.90 ± 2.45|0.047 | −3.85 ± 2.25|0.09 |
| 25(OH)D | |||
| Birth 25(OH)D | 0.24 ± 0.10|0.02 | 0.16 ± 0.11|0.15 | |
| 3–5 Year 25(OH)D | 0.40 ± 0.09|<0.001 | 0.15 ± 0.09|0.11 | |
| Maternal Education | |||
| No College Education | Reference | Reference | |
| College Educated | 6.96 ± 2.12|0.001 | 3.83 ± 2.14|0.08 | |
| Marital Status | |||
| Unmarried | Reference | Reference | |
| Married | 8.46 ± 2.01|<0.001 | 2.01 ± 2.23|0.37 | |
| Sex of Child | |||
| Female | Reference | ||
| Male | −0.80 ± 2.15|0.71 | ||
| Breastfeeding Status | |||
| Formula-fed | Reference | ||
| Breastfed | 1.84 ± 2.20|0.40 | ||
| Race | |||
| White | Reference | Reference | Reference |
| Hispanic | −12.60 ± 2.42|<0.001 | −13.06 ± 5.95|0.03 | −13.14 ± 2.38|<0.001 * |
| African American | −11.96 ± 2.48|<0.001 | −5.06 ± 3.20|0.12 | −8.48 ± 2.97|0.005 * |
| Small for Gestational Age | |||
| AGA or LGA | Reference | ||
| SGA | −3.58 ± 3.43|0.30 | ||
| Season | |||
| Summer, Fall, Winter | Reference | Reference | |
| Spring | 3.60 ± 2.16|0.01 | 1.79 ± 1.93|0.35 | |
| Insurance Status | |||
| Self Pay | Reference | Reference | |
| Private Insurance | 10.92 ± 2.20|<0.001 | 0.40 ± 6.02|0.95 | |
| Medicaid | −3.06 ± 2.37|0.20 | −6.86 ± 5.67|0.23 | |
| Vitamin D Binding Protein Genotype | |||
| 1f1f | Reference | Reference | Reference |
| 1f1s or 1f2 | 9.42 ± 2.73|<0.001 | 7.90 ± 2.74|0.005 | 9.99 ± 2.91|<0.001 * |
| 1s1s, 1s2, or 2,2 | 6.81 ± 2.48|0.007 | 4.19 ± 2.53|0.10 | 4.86 ± 2.93|0.10 |