Table 5.
Adverse outcomes in the two groups
| |
Before propensity matching |
After propensity matching |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| |
Infection (n = 179) |
Colonization (n=253) |
Infection (n=141) |
Colonization (n=141) |
||||||
| Variable | Mean/N | SD/% | Mean/N | SD/% | p-value | Mean/N | SD/% | Mean/N | SD/% | p-value |
|
Hospital days |
26.1 |
12.5 |
19.7 |
8.4 |
<0.001 |
25.9 |
13.11 |
21.3 |
9.1 |
0.002 |
|
Mortality |
10 |
6% |
19 |
8% |
0.431 |
7 |
5% |
14 |
10% |
0.06 |
|
Dialysis |
41 |
23% |
27 |
11% |
0.001 |
23 |
16% |
22 |
16% |
0.31 |
|
Pulmonary |
80 |
45% |
53 |
21% |
<0.001 |
57 |
40% |
36 |
26% |
0.01 |
|
Cardiac |
100 |
56% |
89 |
35% |
<0.001 |
74 |
52% |
65 |
46% |
0.32 |
|
Cyanosis |
50 |
28% |
63 |
25% |
0.48 |
43 |
30% |
36 |
26% |
0.41 |
|
Postop. Reoperation |
35 |
20% |
18 |
7% |
<0.001 |
26 |
18% |
16 |
11% |
0.13 |
|
ICU stay (day) |
10.4 |
7.56 |
6.3 |
5.3 |
0.001 |
10 |
7.42 |
7.9 |
6.21 |
0.006 |
| Extubation time (day) | 213.7 | 202.4 | 97.9 | 149.2 | <0.001 | 184.8 | 168.3 | 132 | 157.1 | 0.006 |
Data are presented as the number of occurrences and the percentage or as the mean and standard deviation (SD) for categorical and continuous variables, respectively. For categorical variables, the p-values are based on two-sided chi squared or Fischer’s exact tests (as appropriate), comparing the infection patients to the colonization patients. For continuous variables, the p-values are based on a t-test or Wilcoxon rank sum test. Statistically significant (p < 0.05) values are presented in bold. ICU: intensive care unit.