Table 4.
Comparison of Testicular Volumes (ml) Obtained by Ultrasound in Normal Children and Adults at different ages Reported by 3 Groups with Volumes in Our Study Subjects Obtained Clinically (means ± SD)
| Age group | Osemlak[6] | Goede et al.[7] |
Bahk et al.[22] (W x H x L x 0.52) |
Our study subjects (W-ss)3 x 0.64 |
p value Osemlak to Our |
p value Goede et al. To Our |
p value Bahk et al. To Our |
|---|---|---|---|---|---|---|---|
| 5 years |
(17) 0.67 ± 0.19 |
(48) 0.58 ± 0.15 |
|
(24) 0.46 ± 0.07 |
<0.001 |
<0.001 |
|
| 7 years |
(17) 0.68 ± 0.21 |
(62) 0.65 ± 0.17 |
|
(22) 0.56 ± 0.09 |
<0.05 |
<0.01 |
|
| 9 years |
(17) 0.85 ± 0.31 |
(53) 0.79 ± 0.46 |
|
(36) 0.65 ± 0.19 |
<0.02 |
>0.05 |
|
| 12 years |
(17) 3.29 ± 2.99 |
(55) 2.33 ± 1.77 |
|
(50) 2.56 ± 1.24 |
>0.1 |
>0.05 |
|
| 13 years |
(18) 5.37 ± 2.92 |
(47) 4.42 ± 2.66 |
|
(18) 4.28 ± 0.96 |
>0.1 |
>0.05 |
|
| 15 years |
(17) 8.71 ± 2.52 |
(26) 8.69 ± 2.91 |
|
(58) 8.01 ± 2.58 |
>0.1 |
>0.1 |
|
| 17 years |
(17) 12.83 ± 3.94 |
(27) 12.12 ± 2.8 |
|
(36) 12.45 ± 1.99 |
>0.5 |
>0.5 |
|
| 18 years |
|
(23) 13.73 ± 3.51 |
|
(56) 13.16 ± 2.67 |
|
>0.1 |
|
| Adults |
|
|
(1139)*13.29 ± 2.82 |
(102) 13.12 ± 3.17 |
|
|
>0.1 |
| (W x H x L x 0.71) 18.37 ± 3.62 |
((W-ss)3 x 0.88) (102) 18.05 ± 4.36 |
>0.1 |
Legend: (#) Number of observations.
The equation used by Osemlak and Goede et al. was W x H x L x 0.52 and our formula (W-ss)3 x 0.64.
* Calculated from the values using 0.71 as a constant.