TABLE 1.

Clinical characteristics of 196 patients infected by P. aeruginosa ^a

Characteristics	Relapse infection (N = 62)	Non-relapse infection (N = 134)	P value
Gender
Male	64.5% (40)	67.9% (91)	0.639
Female	35.5% (22)	32.1% (43)
Age
≥60 years	22.6% (14)	32.1% (43)	0.173
<60 years	77.4% (48)	67.9% (91)
Clinical department
Pulmonology	29.0% (18)	26.1% (35)	0.669
Rehabilitation	17.7% (11)	13.4% (18)	0.429
ICU	12.9% (8)	8.2% (11)	0.302
Neurology	12.9% (8)	7.5% (10)	0.220
Cardiology	9.7% (6)	5.2% (7)	0.392 b
Neurosurgery	8.1% (5)	5.2% (7)	0.652 b
Others	9.7% (6)	34.3% (46)	0.0003
Specimen source
Sputum	64.5%(40)	54.5% (73)	0.186
Alveolar lavage fluid	21% (13)	5.2% (7)	0.001
Wound	6.5% (4)	12.7% (17)	0.189
Urine	4.8% (3)	20.9% (28)	0.004
Blood	3.2% (2)	1.5% (2)	0.799
Others	0% (0)	5.2% (7)	0.156
Clinical diagnosis
Pneumonia	91.9% (57)	68.6% (92)	0.0003
UTI	8.1% (5)	22.4% (30)	0.0158
Wound infection	0% (0)	3.0% (4)	0.1222
BSI	0% (0)	3.0% (4)	0.1222
Pneumonia and BSI	0% (0)	1.5% (2)	0.4981
Others	0% (0)	1.5% (2)	0.4981

^a Data are presented as percentage of patients with the corresponding number in parentheses. UTI, urinary tract infection.

^b Statistical analysis with Fisher’s exact test. BSI, bloodstream infection.