Table 4.

Estimated pooled prevalence of oestrosis in goats by world region

World region	No. of studies	No. of goats sampled	No. of positive goats	Pooled estimate %	95% CI	Heterogeneity (χ2)	I2 (%)	P-value
Global estimate	26	18,216	6583	42.19	33.43–50.95	5277.62	99.5	< 0.0001
Africa	10	6179	3207	48.56	33.04–64.09	1247.18	99.3	< 0.0001
Asia	10	8651	2028	37.01	25.91–48.11	1656.08	99.4	< 0.0001
Europe	6	3386	1348	40.93	28.93–52.92	291.83	97.9	< 0.0001
North and South Americaa	0	–	–	–	–	–	–	–

^aNo records of goat oestrosis from North or South America

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