Table 3.

Meta-Analysis Results.

HeadlineMeta-Analysis		Cochran Q	I2	Lower	Mean	Upper
	N	Statistic p-Value	Statistic	95% CI	RE OR	95% CI
All included studies	22	p < 0.01	51.4%	1.51	1.74	2.00
Subsample of U.S. studies	11	p < 0.01	66.3%	1.35	1.73	2.21
Subsample of studies of agricultural practices	12	p < 0.01	56.4%	1.47	1.81	2.22
Priyardshi et al. [32]	19	p < 0.01	n.r.	1.49	1.94	2.53
Priyardshi et al. [33]	14	p = 0.01	n.r.	1.31	1.85	2.60
Van Maele-Fabry et al. [34]	12	p < 0.01	74.0%	1.03	1.28	1.59
Allen and Levy [35]	20	p = 0.03	40.0%	1.40	1.66	1.96
Pezzoli and Cereda [36]	51	p = 0.005	67.3%	1.56	1.76	2.04