TT: 200 ng/dL = 6.94 nmol/L; 230 ng/dL = 8 nmol/L; 300 ng/dL = 10.4 nmol/L; 317 ng/dL = 11 nmol/L; 325 ng/dL = 11.3 nmol/L; 350 ng/dL = 12 nmol/L; FT: 5 ng/dL = 0.17 nmol/L; 8.9 ng/dL = 0.3092 nmoL/L. ADAM: androgen deficiency in the aging male; BACH: Boston Area Community Health; BT: bioavailable testosterone; cFT: calculated free testosterone; EMAS: European Male Aging Study; HIM: hypogonadism in males; MMAS: Massachusetts Male Aging Study; NR: not reported; SHIP: Study of Health in Pomerania; TT = total testosterone.
aNo statistical test done; bno statistical test done; call pairwise comparisons, over 70 versus all other age groups; d values for trend <0.001; echi square ; fnot significant; gno statistical test done; h for trend; i versus age 50–59 and age 60–69; j value for trend . †Specific symptoms include low libido, erective dysfunction, or osteoporosis; the nonspecific symptoms include sleep disturbance, depressed mood, lethargy, or low physical performance. ††Symptoms include loss of libido, erectile dysfunction, depression, lethargy, inability to concentrate, sleep disturbance, irritability, and depressed mood.
#Specific signs/symptoms are low libido, erectile dysfunction, or osteoporosis.
*To evaluate risks associated with participation in sports in a group of healthy athletic men.
**Positive answer to items 1 or 7, or any 3 other questions on the ADAM questionnaire.