Epidemiology of Avian Tuberculosis in Selected Districts of Oromia Region, Ethiopia

Table 1

Summary of the spatial distribution of chickens tested with avian tuberculin test in the present study and prevalence of avian TB with sex, breed, and altitude.

Variables	Categories	Percentage of chickens tested with the avian PPD, % (N)	Percent positive, % (N)	Prevalence of avian TB, % (N)	95% confidence interval
Sex	Male	15.4 (42)	6.5 (2)	4.8 (2/42)	[0.6, 16]
	Female	84.6 (231)	93.5 (29)	12.6 (29/231)	[9,18]
Breed	Local	70.7 (193)	90.3 (28)	14.5 (28/193)	[10, 20]
	Exotic	26.7 (73)	3.2 (1)	1.4 (1/73)	[0.03, 7]
	Cross	2.6 (7)	6.5 (2)	28.6 (2/7)	[4, 71]
Altitude	Highland	32.2 (88)	19.4 (6)	6.8 (6/88)	[3, 14]
	Midland	35.6 (97)	41.9 (13)	13.4 (13/97)	[7, 22]
	Lowland	32.2 (88)	38.7 (12)	13.6 (12/88)	[7, 23]
Total		100 (273)	100 (31)	11.4 (31/273)	[8, 16]