Table 1. Clinical data of patients with non-mosaic Klinefelter syndrome submitted to TESE.
Parameters TESE with sperm retrieval TESE without sperm retrieval p value a Total
TESE (n) 31 46   77
Male age (years) 33.5±3.8 (28-46) 34.4±4.3 (26-42) 0.356 34.1±4.1 (26-46)
Time of infertility (years) 3.8±2.4 (1-10) 4.1±3.6 (1-17) 0.706 4.0±3.2 (1-17)
Total testicular volume (ml) 7.3±3.7 (3-16) 8.0±4.4 (3-16) 0.479 7.7±4.2 (3-16)
FSH (mIU/ml) 29.6±16.2 (11.8-62.2) 31.1±9.8 (10.4-54.2) 0.660 30.5±12.6 (10.4-62.2)
LH (mIU/ml) 16.6±5.9 (4.4-29.4) 18.5±8.3 (1.9-50) 0.362 17.7±17.3 (1.9-50)
Testosterone (ng/ml) 7.0±4.8 (2.42-18) 10.7±9.0 (2.45-30.86) 0.089 9.1±7.6 (2.42-30.86)
Number of Fragments Biopsied
Total
Right Testicle
Left Testicle
8.1±3.2 (2-18)
8.0±3.8 (2-18)
7.6±2.7 (3-12)
7.7±2.9 (3-15)
7.1±2.5 (2-13)
4.3±1.9 (1-8)
0.596
0.297
0.002
7.9±3.1 (2-18)
7.4±3.0 (2-18)
5.8±2.8 (1-12)
Time of Search 3.5±3.0 (0.5-16) 4.1±0.7 (1.5-5) 0.138 3.9±2.0 (0.5-16)

Values in: mean ± SD, (range).
TESE=testicular sperm extraction
n=number of TESE cases
FSH (normal range: 0.7-11.1 mIU/ml)
LH (normal range: 0.8-7.6 mIU/ml),
Testosterone (normal range: 2.45-16 ng/ml),
Significant differences between groups with and without sperm retrieval (p <0.05).