Table 5.

Summary of the results from the meta-analysis of studies reporting lameness incidence rate (100 cow-years) at cow level using the arcsine data transformation method, before and after outlier removal.

No of studies	Pooled Incidence rate (100 cow-years)	95% CI	95% PI	Heterogeneity measures
				Cochran's Q	P-value Q	Tau2	I2(%)
Before outlier identification and removal
31	45.2	36.9–54.3	8.8–109.7	112985	<0.001	0.033	100.0
After outlier identification and removal
29	36.8	29.3–45.2	5.6–95.5	109127	<0.001	0.032	100.0