Age at Menarche GWAS meta-analysis (Perry et al, Nature 2014) Results file : Menarche_Nature2014_GWASMetaResults_17122014.txt MarkerName = rsnumber Effect_Allele = allele to which the beta refers Other_allele = the alternative allele HapMap_Freq = effect allele frequency in Hapmap GWAS_Beta = SNP effect size for the GWAS meta-analysis excluding iCOGs samples (max N = 132,989) GWAS_P = SNP p-value for the GWAS meta-analysis excluding iCOGs samples iCOGs = Y/N was the SNP present in the iCOGs samples Plus_iCOGs_Beta* = SNP effect size for the GWAS meta-analysis including iCOGs samples (max N = 182,416) Plus_iCOGs_P* = SNP p-value for the GWAS meta-analysis including iCOGs samples *this will give same estimates as GWAS_Beta/P if SNP is not present in iCOGs.