This README file is associated with the summary statistics file "Saxena.fullUKBB.DaytimeSleepiness.sumstats.txt.gz" and the manuscript "Genome-wide association analysis of self-reported daytime sleepiness identifies 42 loci that suggest biological subtypes" (DOI: 10.1038/s41467-019-11456-7). 

Phenotype: self-reported daytime sleepiness of four categories as a continuous varable
Sample size: N = 452,071
Covariates: age, sex, genotyping array, 10 PCs, GRM
Genome build: GRCh37/hg19

Field descriptions
SNP = rsid or chr:pos
CHR = chromosome
BP = base pair GRCh37 - hg19
ALLELE1 = effect allele
ALLELE0 = reference allele
A1FREQ = frequency of the effect allele (EAF)
INFO = imputation quality score
BETA = effect estimate for snp on self-reported daytime sleepiness
SE = standard error of effect estimate for snp on self-reported daytime sleepiness
P = p-value of the association between SNP and self-reported daytime sleepiness