Table 3.

ICRA precaution matrix—class of precautions according to construction type and patient risk group. Author’s adaptation of [50].

	Construction Type
Patient Risk Group	Type A	Type B	Type C	Type D
Low risk group	I	II	II	III
Medium risk group	I	II	III	IV
High risk group	I	III	IV	V
Highest risk group	III	IV	V	V

I–V—precaution classes.