tokens: In this group of patients , the mean LH ( 9 . 3 + / - 5 . 9 IU / l ) and sex - hormone binding globulin ( SHBG ) ( 54 . 5 + / - 22 . 9 nmol / l ) concentrations were significantly greater than those of five normal control subjects ( 4 . 7 + / - 1 . 11 IU / l and 26 . 0 + / - 7 . 0 nmol / l respectively ) .