Table 6. Philadelphia Collars and Infection.
Infection | No Infection | Total | |
---|---|---|---|
Collar | 14 | 29 | 43 |
No collar | 1 | 46 | 47 |
Total | 15 | 75 | 90 |
Relative risk | 15.30 |
Infection | No Infection | Total | |
---|---|---|---|
Collar | 14 | 29 | 43 |
No collar | 1 | 46 | 47 |
Total | 15 | 75 | 90 |
Relative risk | 15.30 |