Table 2.

The association of risk factors with the occurrence of Klebsiella pneumoniae

Variables	Categories	No of positive N (%)	x2	p-value
Age	< 12 months	75 (67.6%)	0.010	0.918
	> 12 months	183 (67.03%)
Breed	Bovans	117 (72.2%)	59.86	0.001
	White leghorn	78 (51.3%)
	Sasso	63 (90.0%)
Sex	Male	29 (72.5%)	0.572	0.450
	Female	229 (66.6%)
Type of production	Egg only	131 (61.5%)	7.459	0.024
	Meat only	36 (70.6%)
	Meat and eggs	91 (75.8%)