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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Psychophysiology. 2011 Nov 14;49(3):401–412. doi: 10.1111/j.1469-8986.2011.01319.x

Table 2.

Genotype Counts and Minor Allele Frequencies of α-Adrenergic Receptor (α-AR) Gene Polymorphisms in Black Youth

Gene Polymorphism Genotype Count Minor Allele Frequency (%)
α1A-AR Arg492Cys (rs1048101) Arg492Arg Arg492Cys Cys492Cys Cys
N = 498 294 181 23 23
 Male (n = 244) 148 86 10
 Female (n = 254) 146 95 13
α2A-AR −1291C/G (rs1800544) C/C C/G G/G C
N = 500 57 230 213 34
 Male (n = 246) 32 108 106
 Female (n = 254) 25 122 107
α2B-AR Ins/Del301-303 (rs29000568) Ins/Ins Ins/Del Del/Del Del
N = 495 363 119 13 15
 Male (n = 243) 179 55 9
 Female (n = 252) 184 64 4