Table 1:

HMC morphologic variants by gender

OmegaMedially Asymmetric EpsilonEpsilonLaterally Asymmetric EpsilonNullTotal
No. (%)No. (%)No. (%)No. (%)No. (%)No.
Overall
    Left hemisphere201 (78.2)7 (2.7)31 (12.1)14 (5.4)4 (1.6)257
    Right hemisphere201 (78.2)8 (3.1)21 (8.2)22 (8.6)5 (1.9)257
    Total402 (78.2)15 (2.9)52 (10.1)36 (7.0)9 (1.8)514
Men
    Left hemisphere105 (73.4)4 (2.8)23 (16.1)10 (7.0)1 (0.7)143
    Right hemisphere114 (79.7)2 (1.4)16 (11.2)10 (7.0)1 (0.7)143
    Total*219 (76.6)6 (2.1)39 (13.6)20 (7.0)2 (0.7)286
Women
    Left hemisphere96 (84.2)3 (2.6)8 (7.0)4 (3.5)3 (2.6)114
    Right hemisphere87 (76.3)6 (5.3)5 (4.4)12 (10.5)4 (3.5)114
    Total183 (80.3)9 (3.9)13 (5.7)16 (7.0)7 (3.1)228
  • * χ2 = 13.675 with 4 df; P = .008.

  • χ2 = 7.933 with 1 df; P = .005.