Table 2.

Frequency and Statistical correlation of different virulence factors among Resistant and susceptible P. aeruginosa strains

Phenotypic character	S-PA	MDR-PA	P-value	OR (95% CI)
Pyoverdine	4	14	a0.01*	6.65 (1.7–25.6)
Pyocyanin	1	7	a0.02*	0.1 (0.01–0.93)
Biofilm	13	18	a0.007*	2.23 (0.6–7.9)
Swarming	4	8	a0.12	–
Catalase	23	22	–
Protease	5	15	a0.02*	3.8 (1.1–12.8)
Phospholipase	16	22	a0.01*	5.8 (1.0–31.5)
Urease	11	12	a0.88	–

a:Pearson’s chi-squared test, P probability, OR Odds Ratio, CI confidence interval