Table 2.

Assessment of heterogeneity and publication bias in publications reporting prevalence of Cryptosporidium in pre-weaned cattle.

Variable	Pooled prevalence		Heterogeneity			Publication bias
	Pooled (%)	OR (95% CI)	I2 (%)	Q	df	Egger bias	t-value	Egger P-value
Global	37.51	32.14–42.89	99.3	10053.26	75	9.41	4.48	<0.0001
Africa	19.03	10.15–27.91	79.9	14.93	3	Too small (3 studies)
Asia	44.3	33.29–55.32	97.6	818.91	20	9.21	3.66	0.0017
Europe	34.91	25.98–43.83	99.0	2208.8	23	11.21	5.51	<0.0001
North America	46.44	21.95–70.93	99.9	4878.06	6	Too small (7 studies)
Oceania	36.92	18.78–55.06	98.7	297.12	4	Too small (5 studies)
South America	33.01	22.09–43.93	99.1	1561.23	14	7.75	1.19	0.250
Microscopy	39.07	32.36–45.79	99.0	3360.43	33	−1.35	−0.33	0.742
Immunological	40.47	26.14–54.79	99.3	2133.8	16	12.92	4.89	0.002
Molecular	33.44	23.71–43.17	98.7	1879.19	24	7.17	2.03	0.054

Abbreviations: CI, confidence interval; df, degrees of freedom.