Table 4. The various detection methods used and species of Pseudomonas aeruginosa in patients with community-acquired and nosocomial-acquired pneumonia.

Note: Significant P values are shown in bold.

Specimen	Community-acquired pneumonia (n = 91) (%)	Nosocomial-acquired pneumonia (n = 77) (%)	P value
Bronchial secretion	26 (28.6)	17 (22.1)	0.435
Tracheal secretion	52 (57.1)	57 (74.0)	0.034
Sputum	11 (12.1)	2 (2.6)	0.045
Venous blood culture	1 (1.1)	1 (1.3)	0.554
Secretion drainage	1 (1.1)	0	0.920
Species
Pseudomonas aeruginosa	91 (100)	77 (100)