. 2018 Oct 1;6:23–28. doi: 10.1016/j.onehlt.2018.09.002

Table 4.

Table Mixed-effects meta-regression model results on the seroprevalence of Q fever in abattoir and slaughterhouses.

Source of variation	Category	Estimate	SE	Z	P-Value	95% CI		I²	R²
Source of variation	Category	Estimate	SE	Z	P-Value	Lower	Upper	I²	R²
Outbreak	Intercept	0.27	0.09	3.05	0.00	0.10	0.45	99.06%	0.02%
Outbreak	Outbreak	0.01	0.11	0.08	0.94	−0.21	0.23	99.06%	0.02%
Diagnosis method	Intercept	0.18	0.12	1.57	0.12	−0.05	0.41	98.90%	26.86%
	CFT	0.01	0.14	0.06	0.96	−0.26	0.27
	ELISA	0.22	0.16	1.40	0.16	−0.09	0.52
	IFA	0.30	0.17	1.78	0.08	−0.03	0.62

Mixed-Effects Model (k = 19; tau^2 (estimated amount of residual heterogeneity) estimator: ML (Maximum Likelihood)). I^2 (residual heterogeneity/unaccounted variability). R^2 (amount of heterogeneity accounted for).