Table 3.
Descriptive statistics and Spearman correlation of PBDEs with the five domains of the Bayley-III score (n = 100).
| Variables | Cognitive (r) | Language (r) | Motor (r) | Social–Emotional (r) | Adaptive Behavior (r) |
|---|---|---|---|---|---|
| Bayley-III score | |||||
| Cognitive | 1 | 0.474 *** | 0.345 *** | 0.149 | 0.078 |
| Language | 0.474 *** | 1 | 0.371 *** | 0.134 | 0.316 ** |
| Motor | 0.345 *** | 0.371 *** | 1 | 0.053 | 0.255 * |
| Social–emotional | 0.149 | 0.134 | 0.053 | 1 | 0.385 *** |
| Adaptive behavior | 0.078 | 0.316 ** | 0.255 * | 0.385 *** | 1 |
| PBDEs (pg/g lipid) | |||||
| BDE-17 (3 Br) | −0.058 | 0.061 | 0.048 | −0.019 | −0.006 |
| BDE-49 (4 Br) | −0.039 | 0.089 | 0.061 | −0.040 | −0.022 |
| BDE-66 (4 Br) | −0.025 | 0.040 | 0.016 | −0.004 | −0.018 |
| BDE-71 (4 Br) | −0.003 | 0.063 | −0.030 | 0.014 | −0.022 |
| BDE-99 (5 Br) | −0.109 | 0.077 | −0.139 | −0.083 | −0.045 |
| BDE-126 (5 Br) | −0.069 | −0.135 | −0.047 | −0.046 | −0.081 |
| BDE-140 (6 Br) | 0.111 | 0.015 | 0.095 | 0.175 † | 0.022 |
| BDE-184 (7 Br) | 0.152 | 0.056 | 0.076 | 0.107 | −0.023 |
| BDE-203 (8 Br) | −0.077 | −0.051 | −0.005 | 0.216 * | 0.029 |
| BDE-206 (9 Br) | −0.189 † | 0.026 | 0.055 | 0.024 | −0.008 |
| BDE-209 (10 Br) | −0.218 * | 0.150 | 0.043 | −0.056 | 0.028 |
| Σ30 PBDEs | −0.135 | −0.087 | −0.028 | −0.075 | −0.0360 |
Abbreviations: BDE, brominated diphenyl ethers; PBDE, polybrominated diphenyl ethers. † p < 0.1, * p<0.05, ** p < 0.01, *** p < 0.001.