Table 5.
Logistic regression analysis of factors related to the prevalence of lead poisoning in children
| Independent variable | B | OR | P |
|---|---|---|---|
| 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 |