Table 1.

Allele Frequencies for Known SNPs in Patients With MM, Categorized by Race and Lesion Level ^a

SNP		Major Allele	Common Allele Frequency					Expected Frequency (dbSNP) b	P Value b
	Location		All MM Patients; N = 96	Cauc Amer (≥L1); N = 24	Mex Amer (≥L1); N = 24	Cauc Amer (<L1); N = 24	Mex Amer (<L1); N = 24
rs11537639	Exon 1	A	1.0	1.0	1.0	1.0	1.0	NA	–
rs11537640	Exon 1	A	0.841	0.875	0.738	0.833	0.870	0.810	NS
rs28365848	Exon 1	A	0.833	0.875	0.738	0.833	0.875	0.780	NS
rs1385129	Exon 2	G	0.745	0.833	0.625	0.792	0.729	0.750	NS
rs11537641	Exon 4	C	0.849	0.854	0.833	0.854	0.854	0.770	NS
rs2229682	Exon 5	G	0.839	0.896	0.813	0.792	0.854	0.825	NS
rs2229681	Exon 8	C	1.0	1.0	1.0	1.0	1.0	1.0	NS
rs2306662	Exon 8	A	1.0	1.0	1.0	1.0	1.0	1.0	NS
rs2236574	Exon 9	C	1.0	1.0	1.0	1.0	1.0	1.0	NS
rs13306758	Exon 10	C	1.0	1.0	1.0	1.0	1.0	1.0	NS

Abbreviations: NA, not available; NS, not significant; MM, myelomeningocele; SNPs, single nucleotide polymorphisms; Cauc Amer, Caucasian American; Mex Amer, Mexican American.

^a Expected frequency from dbSNP in CEU samples.

^b P value indicates 2-sided Fisher exact test comparing patients with MM to the expected frequency.