ResultsSharingFormat

The following variables should be included when sharing imputed results for meta-analysis:

variable name	description
SNPID	SNP ID as rs number
chr	chromosome number
position	physical position for the reference sequence (NCBI 35, 36)
coded_all	coded allele, also called modeled allele (in example of A/G SNP in which AA=0, AG=1 and GG=2, the coded allele is G)
noncoded_all	the alternate allele
strand_genome	+ or -, representing either the positive/forward strand or the negative/reverse strand of the human genome reference sequence; to clarify which strand the coded_all and noncoded_all are on
beta	beta estimate from genotype-phenotype association, at least 5 decimal places
SE	standard error of beta estimate, to at least 5 decimal places
pval	p-value of test statistic, here just as a double check
AF_coded_all	allele frequency for the coded allele
HWE_pval	exact test Hardy-Weinberg equilibrium p-value
callrate	genotyping callrate after exclusions
n_total	total sample with phenotype and genotype for SNP
imputed	1/0 coding; 1=imputed SNP, 0=not imputed
used_for_imp	1/0 coding; 1=used for imputation, 0=not used for imputation
oevar_imp	observed divided by expected variance for imputed allele dosage
avpostprob	average posterior probability for imputed SNP allele dosage* (applies to best-guess genotype imputation)

Please note that a README should be uploaded with a very brief description of the data uploaded, the date, the NCBI human genome reference sequence used (e.g. NCBI 36.2) for strand reference, and the scale of the beta estimates; ; please also include in the README the SNP HWE p-value, callrate and minor allele frequency filters that have been applied.