Table 3. Characteristis of patients with P. aeruginosa infection.
| Characteristics | A(2007–2010) | B(2011–2013) | P value |
|---|---|---|---|
| Hospitalized patients | 3722 | 3943 | |
| P. aeruginosa infection cases (n, %) | 78 (2.10%) | 52 (1.31%) | 0.010476 |
| Community infections (n, %) | 8 (0.21%) | 10 (0.25%) | 0.909589 |
| Healthcare-associated infections (n, %) | 70 (1.89%) | 42 (1.07%) | 0.003993 |
| Total number of culture-positive specimensa (n, %) a | 147 (3.95%) | 113 (2.87%) | 0.010581 |
| Total number of positive specimens from infection patients (n, %) | 112 (3.01%) | 85 (2.16%) | 0.022159 |
| Total number of positive specimens from community-acquired infections (n, %) | 21 (0.56%) | 26 (0.66%) | 0.698649 |
| Total number of positive specimens from healthcare-acquired infections (n, %) | 91 (2.45%) | 59 (1.50%) | 0.021675 |
| Mortality rate for P. aeruginosa infection (n, %) | 30/78(38.46%) | 18/52 (34.15) | 0.795112 |
| Mortality rate for healthcare-associated P. aeruginosa infection (n, %) | 26/70 (37.14%) | 13/42 (30.95) | 0.364346 |
aIncluding colonization strains. Colonization strains were primarily specimens that had one positive sputum or catheter culture, and patient’s clinical presentation was not typical of P. aeruginosa infections and were, therefore, not treated as culture-positive strains.