Additional file 2: of Association between polymorphisms in the GRIN1 gene 5′ regulatory region and schizophrenia in a northern Han Chinese population and haplotype effects on protein expression in vitro

Haplotypes formed by the seven SNPs in GRIN1 and disease risk (significance level = 0.025). Del-G-G represents the haplotype T-del-G-G-C-G-G, T-T-C represents the haplotype T-insT-T-G-C-C.The frequency distribution of haplotype T-del-G-G-C-G-G was significantly different between the case group and the control group, with p values of 0.005. Specifically, the frequency of haplotype T-del-G-G-C-G-G in the case group (77.8%) was much higher than in the control group (70.9%), increasing the disease risk (OR = 1.442, 95% CI: 1.116–1.862). Haplotype T-insT-T-G-C-G-C was not related to schizophrenia (XLSX 12 kb)