Table 5 Logistic regression analysis of factors related to the prevalence of lead poisoning in children

Well-educated parents

−0.81

1.75

0.049

Finger-sucking, nail-biting

0.556

1.743

0.041

Putting foreign objects in the mouth (e.g., pencil, toys)

0.44

1.26

0.029

Often eat puffed food, preserved eggs and canned food, etc.

1.623

4.837

0.008

Often playing plasticine, color pen, etc.

0.66

1.274

0.050

Using colored tableware frequently

0.87

2.011

0.038

Smoking by a family member

0.99

2.46

0.032

Recent room decoration

0.47

1.024

0.035

Living near main road

0.151

2.978

0.016

Daily protein intake

−1.42

0.276

0.033