| 例数 | 左侧睾丸体积 | 右侧睾丸体积 | t | p |
8岁 | 26 | 0.74 ± 0.33 | 0.79 ± 0.34 | −0.51 | 0.61 |
9岁 | 21 | 1.22 ± 1.01 | 1.32 ± 1.12 | −0.28 | 0.78 |
10岁 | 16 | 1.74 ± 1.21 | 1.88 ± 1.14 | −0.33 | 0.74 |
11岁 | 8 | 2.12 ± 1.85 | 1.74 ± 1.08 | 0.48 | 0.64 |