| n | % |
<7 days | 32 | 30.5 |
7 to 30 days | 35 | 33.3 |
>30 days | 25 | 23.8 |
Death before decannulation | 08 | 07.6 |
Impossible decannulation | 05 | 04.8 |
Total | 105 | 100 |