[Retracted] VEGF Genetic Polymorphisms May Contribute to the Risk of Diabetic Nephropathy in Patients with Diabetes Mellitus: A Meta-Analysis

Table 3

Univariate and multivariate metaregression analyses of potential source of heterogeneity.

Heterogeneity factors	Coefficient	SE	Z	P	95% CI
					LL	UL
Publication year
Univariate	−0.349	0.016	−2.21	0.027	−0.066	−0.004
Multivariate	−0.062	0.035	−1.75	0.080	−0.132	0.007
SNP type
Univariate	−0.063	0.026	−2.43	0.015	−0.113	−0.012
Multivariate	−0.037	0.033	−1.13	0.258	−0.101	0.027
Country
Univariate	0.031	0.040	0.79	0.431	−0.046	0.108
Multivariate	−0.101	0.080	−1.26	0.206	−0.257	0.055
Ethnicity
Univariate	0.264	0.088	2.99	0.003	0.091	0.437
Multivariate	0.199	0.088	2.25	0.025	0.025	0.372
Method
Univariate	−0.222	0.088	−2.52	0.012	−0.395	−0.049
Multivariate	−0.047	0.137	−0.34	0.733	−0.315	0.222

SE: standard error; 95%CI: 95% confidence interval; UL: upper limit; LL: lower limit; SNP: single nucleotide polymorphism.