Table 6 Comparison of z score of symptoms with low relationship with low PeCDF level (< 50 pg/g lipid)

PCB pattern (C)

5.439

4.937

Odontogenesis imperfecta (+)

1.930

≤ 1.645

Hepatomegaly (+)

1.795

≤ 1.645

Urinary protein (abnormal)

1.756

≤ 1.645

Nutrition (thin)

1.710

≤ 1.645

Inorganic phosphorus (low)

1.677

≤ 1.645

Palpebral conjunctiva pigmentation (+ or above)

1.646

≤ 1.645

Smoking state (+)

≤ 1.645

2.623

Albumin (high)

≤ 1.645

2.019

Inferior gingival pigmentation (brown)

≤ 1.645

1.968

Blood glucose (low)

≤ 1.645

1.771

Total bilirubin (high)

≤ 1.645

1.659