Table 2.
Comparisons of Bisphenol A Metabolites by Mann-Whitney U tests for Autistic (ASD) and Control Children.
| METABOLITE | ASD | CONTROL | U | z | p | r | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | MEDIAN | 25th % | 75th % | N | MEDIAN | 25th % | 75th % | |||||
| Total BPA (ng/ml) | 46 | 11.18 | 4.54 | 29.36 | 52 | 6.58 | 3.32 | 12.15 | 848 | −2.48 | 0.01 | −0.25 |
| Total BPA (ng/ml) | 37 | 9.66 | 4.33 | 13.61 | 51 | 6.41 | 3.28 | 11.50 | 811 | −1.12 | 0.26 | −0.12 |
| Free BPA(ng/ml) | 46 | 0.78 | 0.48 | 1.38 | 52 | 0.72 | 0.39 | 1.32 | 1061 | −0.96 | 0.34 | −0.10 |
| Free BPA(ng/ml) | 37 | 0.67 | 0.44 | 1.05 | 51 | 0.74 | 0.39 | 1.34 | 887 | −0.48 | 0.63 | −0.05 |
| Bound BPA (%) | 46 | 91.21 | 86.81 | 96.03 | 52 | 86.98 | 77.28 | 94.25 | 901 | −2.10 | 0.04 | −0.21 |
| Bound BPA (%) | 37 | 89.90 | 85.20 | 94.20 | 51 | 86.72 | 77.06 | 94.02 | 769 | −1.48 | 0.14 | −0.16 |
BPA = Bisphenol A, U = Mann-Whitney U Test statistic, r = effect size. Data in regular font are for the total data set (n=98), in italics are the data without the 10 subjects with very high total urinary BPA levels (n=88).