Table 3.
Mean, Standard Deviation, and Intercorrelation of Primary Study Variables and Covariates
| Variable | Mean | SD | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 Infant Birth Weight, g | 3251.78 | 487.48 | – | – | – | – | – | – | – | – | – | – |
| 2 Infant Postmenstrual Age at Scan, wk | 41.31 | 1.26 | 0.20a (0.07 to 0.32) | – | – | – | – | – | – | – | – | – |
| 3 Maternal INR | 3.13 | 3.10 | 0.35a (0.23 to 0.46) | 0.20a (0.07 to 0.32) | – | – | – | – | – | – | – | – |
| 4 Maternal Age, y | 29.29 | 5.23 | 0.16b (0.02 to 0.28) | −0.00 (−0.14 to 0.13) | 0.46a (0.35 to 0.56) | – | – | – | – | – | – | – |
| 5 Disadvantage Factor Score | −0.14 | 0.98 | −0.38a (−0.49 to −0.26) | −0.21a (−0.33 to −0.08) | −0.91a (−0.93 to −0.88) | −0.49a (−0.58 to −0.38) | – | – | – | – | – | – |
| 6 Psychosocial Stress Factor Score | −0.17 | 0.85 | −0.14b (−0.26 to −0.01) | −0.13 (−0.26 to 0.00) | −0.36a (−0.47 to −0.24) | −0.26a (−0.38 to −0.13) | 0.41a (0.29 to 0.51) | – | – | – | – | – |
| 7 Amygdala Volume, mm3 | 910.75 | 99.79 | 0.35a (0.23 to 0.46) | 0.45a (0.34 to 0.55) | 0.33a (0.21 to 0.44) | 0.09 (−0.05 to 0.21) | −0.37a (−0.47 to −0.25) | −0.18a (−0.30 to −0.05) | – | – | – | – |
| 8 Total Gray Matter Volume, mm3 | 120,769.26 | 15,202.87 | 0.46a (0.35 to 0.56) | 0.58a (0.48 to 0.66) | 0.34a (0.21 to 0.45) | 0.10 (−0.04 to 0.22) | −0.34a (−0.45 to −0.22) | −0.21a (−0.33 to −0.08) | 0.82a (0.78 to 0.86) | – | – | – |
| 9 T1 Cortisol AUCg | 3292.04 | 1714.67 | −0.09 (−0.25 to 0.08) | −0.02 (−0.19 to 0.15) | −0.06 (−0.23 to 0.11) | −0.15 (−0.31 to 0.02) | 0.13 (−0.04 to 0.29) | 0.10 (−0.07 to 0.26) | −0.05 (−0.22 to 0.12) | −0.03 (−0.20 to 0.14) | – | – |
| 10 T2 Cortisol AUCg | 4093.92 | 2429.84 | −0.02 (−0.16 to 0.12) | 0.13 (−0.01 to 0.26) | −0.15b (−0.28 to −0.01) | −0.09 (−0.23 to 0.05) | 0.17b (0.04 to 0.31) | −0.04 (−0.18 to 0.10) | −0.03 (−0.17 to 0.11) | −0.03 (−0.17 to 0.11) | 0.20b (0.02 to 0.37) | – |
| 11 T3 Cortisol AUCg | 4914.82 | 3208.48 | −0.02 (−0.16 to 0.11) | 0.12 (−0.02 to 0.25) | −0.08 (−0.21 to 0.06) | −0.18b (−0.30 to −0.04) | 0.07 (−0.06 to 0.21) | −0.05 (−0.19 to 0.08) | −0.02 (−0.16 to 0.11) | 0.02 (−0.11 to 0.16) | 0.16 (−0.01 to 0.33) | 0.31a (0.18–0.44) |
Values in parentheses indicate the 95% CI for each correlation.
AUCg, area under the curve with respect to ground; INR, income-to-needs ratio; T, trimester.
a
p < .01.
b
p < .05.