The global and regional prevalence of oestrosis in sheep and goats: a systematic review of articles and meta-analysis

Table 3 Estimated pooled prevalence of oestrosis in sheep by world region

World region	No. of studies	No. of sheep sampled	No. of positive sheep	Pooled estimate %	95% CI	Heterogeneity (χ²)	I² (%)	P-value
Global estimate	58	40,870	18,194	51.15	42.80–59.51	26,703.21	99.8	< 0.0001
Africa	16	9975	2959	47.41	32.16–62.65	6591.58	99.8	< 0.0001
Asia	20	16,897	6541	48.28	33.04–63.53	12,879.06	99.8	< 0.0001
Europe	17	12,940	8345	63.69	56.08–71.30	1108.77	98.6	< 0.0001
North and South America	5	1058	349	34.45	19.90–49.01	76.80	94.8	< 0.0001

Abbreviations: CI, confidence interval; χ², Cochran’s Q Chi square; I², inverse variance index

ISSN: 1756-3305