Table 5.
Univariable predictions of SSI adjusted by age and gender
| Variable | 1 (n = 442) Baseline |
Year 2 (n = 820) Intervention |
Year 3 (n = 806) Intervention |
Year 4 (n = 773) Follow-up |
Year 5 (n = 712) Follow-up |
p-value |
|---|---|---|---|---|---|---|
| SSIa | 13 (2.9%) | 18 (2.2%) | 19 (2.4%) | 9 (1.2%) | 8 (1.1%) | 0.0079 |
| UTIb | 75 (17.0%) | 104 (12.7%) | 58 (7.2%) | 31 (4.0%) | 31 (4.4%) | < .0001 |
| Sepsis | 13 (2.9%) | 21 (2.6%) | 23 (2.9%) | 12 (1.6%) | 8 (1.1%) | 0.0094 |
| Pneumonia | 35 (7.9%) | 71 (8.7%) | 48 (6.0%) | 45 (5.8%) | 63 (8.9%) | 0.76 |
| Covid-19 | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 12 (1.7%) | |
| Any type of infection except SSI | 124 (28.1%) | 216 (26.3%) | 163 (20.2%) | 111 (14.4%) | 131 (18.4%) | < .0001 |
For categorical variables, n (%) is presented
For comparisons between groups, the Mantel–Haenszel chi square test was used for ordered categorical variables
aSurgical site infections
bUrinary tract infection requiring medical treatment