Table 4.
Results of the statistical analyses of the PCDD/PCDF concentrations.
| Compound | Signed Rank Test
|
|||
|---|---|---|---|---|
| CASE | CONTROL | |||
|
| ||||
| z-statistic | p | z-statistic | p | |
| 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | 6.95* | <0.001 | 1.538 | 0.125 |
| Octachlorodibenzo-p-dioxin | −7.961 | <0.001 | 0.682 | 0.496 |
| 1,2,3,7,8,9-Hexachlorodibenzofuran | −5.915 | <0.001 | 0.105 | 0.918 |
| 1,2,3,4,6,7,8-Heptachlorodibenzofuran | 6.95 | <0.001 | 2.794 | 0.005 |
| Compound | Rank Sum Test
|
|||
|---|---|---|---|---|
| Pre- | Post- | |||
|
| ||||
| Mann-Whitney U | p | Mann-Whitney U | p | |
| 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | 19038 | 0.567 | 15646 | <0.001 |
| Octachlorodibenzo-p-dioxin | 19125 | 0.640 | 18725 | 0.702 |
| 1,2,3,7,8,9-Hexachlorodibenzofuran | 19034 | 0.557 | 18710 | 0.664 |
| 1,2,3,4,6,7,8-Heptachlorodibenzofuran | 18040 | 0.102 | 17808 | 0.168 |
*
Bolded entries are statistically significant.