Chromosomal regions and genes identified by clusters of SNPs that provide nominally-significant differences between individuals dependent on alcohol (dbGAP alcohol dependent <i>v</i> ctl) or at least one illegal substance (NIDA/MNB drug dependent v ctl) in subjects of African-American heritage.

Columns list: chromosome, number of nominally-positive SNPs in dbGAP samples, beginning and end of the chromosomal region identified by clustered nominally-significant associations in dbGAP samples, SNP with the minimal p value found in the region, the p value for the SNP with the minimal p value in this region, similar data for the NIDA/MNB samples, and the gene(s) identified by these clustered SNPs.