Ingested quantity

Present lesions

Absent lesions

OR [IC]

P

Minimal

12

29

0.03 [0.01 - 0.3]

0.001

Moderate

8

1

12.9 [1.6 - 103.3]

0.01

Important

5

0

7.1 [2.5 - 20.1]

0.01