Table 1.

Eight SNPs analyzed for association with migraine in a Swedish population-based cohort

Chr	SNP of interest	Alleles	Replacement SNP	Gene	Alleles	Risk Allele	MAF	OR
1	rs2651899	T > C		PRMD16		C	0.45	1.10
1	rs3790455		rs2274316	MEF2D	A > C	C	0.34	1.23
2	rs10166942		rs1003540	TRMP8	A > G	A	Na	Na
3	rs7640543		rs4075749	TGFBR2	T > C	C	Na	Na
6	rs9349379	A > G		PHACTR1		A	0.38	0.82
8	rs1835740	C > T		MTDH		T	0.22	1.0
9	rs6478241	G > A		ASTN2		A	0.38	1.22
12	rs11172113	T > C		LRP1		T	0.4	0.86

Chr = chromosome; SNP of interest = SNPs identified in previous GWAS, see article text for references; Replacement SNP = SNPs of interest not genotyped on the Illumina chip were replaced with other genotyped SNPs in linkage disequilibrium with the SNP of interest (r ² > 0.89); Gene = the SNPs are either located within or close to these genes; MAF = minor allele frequency from Freilinger et al. [14]; OR = odds ratio from Freilinger et al. [14].