Table 3. Main Results of Pooled ORs and Analysis of C4,C4A and C4B CNV with Autoimmune Diseases in this Meta-Analysis.

		<4 VS ≥ 4 C4			<2 VS ≥ 2 C4A			<2 VS ≥ 2 C4B
Classification	N(Case/Control)	OR	95%CI	PH	OR	95%CI	PH	OR	95%CI	PH
All disease		1.46	(1.19, 1.78)	<0.001	1.46	(1.10, 1.94)	<0.001	1.07	(0.93, 1.24)	<0.001
SLE	8(3672/4746)	1.80	(1.51, 2.13)	0.016	2.13	(1.71, 2.64)	0.003	1.18	(0.94, 1.47)	<0.001
Other	8(4991/6353)	1.05	(0.80, 1.38)	<0.001	0.94	(0.64, 1.38)	<0.001	0.96	(0.80, 1.16)	0.013
Ethnicity
Asian	7(4992/7380)	1.13	(0.88, 1.45)	<0.001	0.98	(0.65, 1.49)	<0.001	0.96	(0.82, 1.12)	0.021
Caucasian	9(3671/3719)	1.91	(1.42, 2.56)	<0.001	2.05	(1.49, 2.83)	<0.001	1.25	(0.96, 1.63)	<0.001

P_H: P value for heterogeneity.