Prevalence of Bovine Mastitis and Its Associated Risk Factors among Dairy Cows in Ethiopia during 2005–2022: A Systematic Review and Meta-Analysis

Table 3

Prevalence of bovine mastitis among dairy cows in Ethiopia by subgroup analysis.

Variables	Characteristics	Number of studies	Sample size	Prevalence (95% CI)	I^2, value
Sample size	<200	3	344	57.39 (95% CI: 28.88, 85.90)	98.33%,
	>200	14	6094	40.69 (95% CI: 31.88, 49.49)	98.14%,
Pooled prevalence of mastitis by region	Addis Ababa	2	736	48.96 (95% CI: 44.82, 53.09)	—
	Amhara	3	1048	25.09 (95% CI: 3.86, 46.32)	98.63%,
	B/Gumuz	1	384	39.30 (95% CI: 34.90, 43.70)	—
	Oromia	5	1301	49.90 (95% CI: 31.77, 68.03)	98.49%,
	SNNPR	6	2969	46.66 (95% CI: 31.35, 61.96)	98.27%,
Pooled prevalence of mastitis by year	2005–2016	8	3400	39.97 (95% CI: 25.50, 54.44)	98.89%,
	2017–2022	9	3038	46.83 (95% CI: 35.68, 57.97)	97.57%,
Pooled prevalence by type of mastitis	Clinical	17	6438	12.59 (95% CI: 7.18, 18.00)	98.76%,
	Subclinical	17	6438	32.21 (95% CI: 24.68, 39.74)	98.24%,
	Overall	17	6438	43.60 (95% CI: 34.71, 52.49)	98.37%,