Sex;"N. of samples";a;b;"r 2" Male;445;"0.0116 ± 0.09";"3.087 ± 0.053";0.967 Female;471;"0.0123 ± 0.13";"3.064 ± 0.069";0.941 Overall;1131;"0.0113 ± 0.18";"3.096 ± 0.038";0.958