Table 4 Results of logistic regression analysis(2,3,4,7,8-PeCDF blood level as an objective variable)
List of explanatory variables which showed less than 0.10 level of significance when 2,3,4,7,8-PeCDF blood level (2 categories) and the factors selected by the principal components analysis were used as objective variables and explanatory variables, respectively |
Explanatory variables | β | Standard deviation | Wald | Significance probability | Exp (B) | |
|---|---|---|---|---|---|---|
1 | PCB blood level | 1.641 | 0.355 | 21.350 | 0.00000** | 5.159 |
2 | PCQ blood level | 8.235 | 1.844 | 19.949 | 0.00001** | 3771.361 |
3 | Blood sugar (increase) | 0.038 | 0.011 | 11.310 | 0.00077** | 1.038 |
4 | Arthralgia | 3.734 | 1.159 | 10.382 | 0.00127** | 41.857 |
5 | Gender (female) | 3.456 | 1.115 | 9.605 | 0.00194** | 31.679 |
6 | T-bilirubin (increase) | -3.310 | 1.194 | 7.681 | 0.00558** | 0.037 |
7 | Black comedones (face) | -2.216 | 0.836 | 7.021 | 0.00806** | 0.109 |
8 | Past history of skin pigmentation | 3.576 | 1.435 | 6.209 | 0.01271** | 35.735 |
9 | A/G ratio (decrease) | 1.978 | 0.825 | 5.748 | 0.01651** | 7.225 |
10 | Acneform eruptions (trunk) | 3.809 | 1.650 | 5.331 | 0.02095** | 45.088 |
11 | Respiratory sounds (abnormal) | 6.036 | 2.780 | 4.714 | 0.02991** | 418.145 |
12 | Acneform eruptions (other sites) | -5.514 | 2.721 | 4.107 | 0.04270** | 0.004 |
13 | Potassium level (increase) | -1.849 | 0.917 | 4.071 | 0.04361** | 0.157 |
14 | Past history of acneform eruptions | -2.630 | 1.304 | 4.065 | 0.04378** | 0.072 |
15 | Total cholesterol (increase) | -0.023 | 0.011 | 3.910 | 0.04799** | 0.978 |
16 | Heart sound (abnormal) | 13.341 | 7.892 | 2.857 | 0.09096* | 621883.792 |
List of explanatory variables which showed less than 0.10 level of significance when PCB and PCQ blood levels were excluded from the explanatory variables in the above analysis |
Explanatory variables | β | Standard deviation | Wald | Significance probability | Exp (B) | |
|---|---|---|---|---|---|---|
1 | Past history of pigmentation | 1.719 | 0.445 | 14.943 | 0.00011** | 5.582 |
2 | Age (old) | 0.053 | 0.014 | 13.637 | 0.00022** | 1.055 |
3 | A/G ratio (decrease) | 0.723 | 0.336 | 4.646 | 0.03113** | 2.061 |
4 | General fatigue | -0.652 | 0.304 | 4.593 | 0.03211** | 0.521 |
5 | Arthralgia | 0.633 | 0.299 | 4.478 | 0.03433** | 1.884 |
6 | Gender (female) | 0.615 | 0.334 | 3.390 | 0.06558* | 1.850 |
7 | Pigmentation of the right buccal mucosa (band-like) | 2.596 | 1.422 | 3.332 | 0.06793* | 13.416 |