Table 1. Distribution of virulence-related genes according to patient’s ICUs.
| Related function | Gene | AICU n = 28 |
PICU n = 14 |
NICU n = 12 |
P-value* |
|---|---|---|---|---|---|
| Adhesion | algU | 12 | 7 | 6 | 0.8758 |
| algD | 28 | 13 | 12 | 0.4601 | |
| T1SS | aprA | 21 | 10 | 6 | 0.3204 |
| T2SS | lasA | 9 | 7 | 5 | 0.5379 |
| lasB | 28 | 14 | 12 | 1.000 | |
| toxA | 23 | 13 | 11 | 0.9329 | |
| T3SS | exoS+/ exoU+ | 17 | 10 | 3a | 0.0461* |
| exoS+/ exoU- | 11 | 4 | 9 | ||
| exoT | 21 | 12 | 6 | 0.1371 | |
| exoY | 23 | 12 | 6 | 0.0863 | |
| Oxidative stress | phzI | 27 | 13 | 11 | 0.8346 |
| phzII | 21 | 11 | 5 | 0.0959 | |
| phzM | 22 | 12 | 7 | 0.2775 | |
| phzS | 20 | 12 | 5 | 0.0581 | |
| phzH | 21 | 12 | 5a | 0.0491* | |
| QS/regulation | lasI | 26 | 13 | 12 | 0.5386 |
| lasR | 26 | 12 | 12 | 0.3334 | |
| rhlL | 28 | 14 | 12 | 1.000 | |
| rhlR | 28 | 14 | 12 | 1.000 |
T1SS, type I secretion system; T2SS, type II secretion system; T3SS, type III secretion system; QS, quorum sensing; AICU, adult intensive care unit; PICU, pediatric intensive care unit; NICU, neonatal intensive care unit.
* P values were calculated using the G-test of independence.
a Frequency lower than expected at random.