From: Dynamic alteration of serum testosterone with aging: a cross-sectional study from Shanghai, China
Age group | Number | Serum level, mean ± SD (95 % CI) | ||||
---|---|---|---|---|---|---|
T (nmol/L) | LH (IU/L) | SHBG (nmol/L) | FTI( % ) | TSI (nmol/IU) | ||
20~ | 40 | 17.31 ± 4.95 (15.73,18.89) | 4.06 ± 1.73 (3.51,4.61) | 25.91 ± 10.39 (22.59,29.23) | 0.73 ± 0.21 (0.66,0.80) | 4.79 ± 1.91 (4.18,5.40) |
25~ | 185 | 16.18 ± 4.57 (15.52,16.85) | 3.97 ± 1.73 (3.72,4.22) | 25.44 ± 11.29 (23.80,27.08) | 0.71 ± 0.27 (0.67,0.75) | 4.65 ± 1.87 (4.38,4.92) |
30~ | 146 | 15.46 ± 4.59 (14.71,16.21) | 3.76 ± 1.53 (3.51,4.01) | 28.69 ± 15.74 (26.12,31.27) | 0.62 ± 0.22* (0.59,0.66) | 4.67 ± 2.18 (4.31,5.03) |
35~ | 101 | 14.40 ± 4.33* (13.54,15.25) | 3.84 ± 1.35 (3.57,4.11) | 26.77 ± 12.08 (24.39,29.16) | 0.59 ± 0.20* (0.55,0.63) | 4.17 ± 1.87 (3.80,4.54) |
40~ | 94 | 14.33 ± 4.91* (13.33,15.34) | 3.79 ± 1.66 (3.45,4.13) | 30.49 ± 14.11 (27.60,33.38) | 0.51 ± 0.16* (0.48,0.55) | 4.44 ± 2.40 (3.95,4.93) |
45~ | 65 | 14.22 ± 4.17* (13.18,15.25) | 4.02 ± 1.95 (3.54,4.51) | 32.90 ± 14.28* (29.36,36.44) | 0.47 ± 0.13* (0.44,0.50) | 4.19 ± 1.93 (3.71,4.66) |
50~ | 63 | 14.19 ± 3.93* (13.20,15.18) | 4.28 ± 1.72 (3.85,4.71) | 34.01 ± 13.66* (30.57,37.46) | 0.46 ± 0.16* (0.42,0.50) | 3.83 ± 1.78* (3.38,4.28) |
55~ | 87 | 14.73 ± 4.87* (13.69,15.77) | 4.63 ± 2.67 (4.06,5.20) | 38.18 ± 17.07* (34.54,41.82) | 0.43 ± 0.14* (0.40,0.46) | 3.78 ± 1.62* (3.43,4.12) |
60~ | 116 | 15.32 ± 4.81 (14.43,16.20) | 6.10 ± 3.56* (5.44,6.75) | 43.27 ± 17.44* (38.09,48.45) | 0.35 ± 0.10* (0.32,0.38) | 3.31 ± 1.90* (2.96,3.66) |
65~ | 92 | 16.18 ± 5.49 (15.05,17.32) | 6.33 ± 3.06* (5.69,6.96) | 45.19 ± 13.19* (40.36,50.03) | 0.34 ± 0.06* (0.31,0.36) | 3.08 ± 1.68* (2.73,3.43) |
70~ | 48 | 16.36 ± 6.23 (14.55,18.17) | 6.87 ± 3.86* (5.75,7.99) | 50.64 ± 25.84* (39.47,61.81) | 0.34 ± 0.09* (0.30,0.38) | 2.95 ± 1.58* (2.49,3.41) |
75~ | 56 | 15.96 ± 5.56 (14.47,17.45) | 8.32 ± 4.19* (7.19,9.44) | 60.64 ± 26.05* (52.07,69.20) | 0.26 ± 0.09* (0.23,0.29) | 2.31 ± 1.14* (2.00,2.61) |
Total | 1093 | 15.36 ± 4.86 (15.07,15.65) | 4.76 ± 2.76* (4.60,4.93) | 32.61 ± 17.24 (31.49,33.72) | 0.55 ± 0.24* (0.53,0.56) | 3.98 ± 2.01* (3.86,4.10) |