Table 4.
Fisher’s exact test comparison of total 30-day mortality
| Cohort | 30-day mortality (%) | Odds ratio (95% CI) | P value | |
|---|---|---|---|---|
| |
Open surgery
|
|
|
|
|
Pre-CPET (Jan 03 to Oct 07) |
Pre-CPET (n = 103) |
12.6 |
|
|
| CPET era (Nov 07 to Jul 11) | CPET era (total) (n = 100) |
4.0 |
0.29 (0.09 to 0.92) |
P
< 0.05 |
| CPET-pass (74/100) |
2.7 |
0.19 (0.04 to 0.88) |
P
< 0.05 |
|
| CPET-fail (8/100) |
12.5 |
0.989 (0.11 to 8.70) |
P = 1.00 |
|
| CPET-submaximal (3/100) |
33.3 |
2.31 (0.22 to 23.90) |
P = 0.43 |
|
| No-CPET (15/100) | 0 | 0.18 (0.01 to 3.20) | P = 0.21 | |