Table 3 Possible influencing factors of sperm retrieval rate

Age at orchidopexy [M (P₂₅, P₇₅), years]

8 (5, 12.75)

14 (7, 28)

0^a

Orchidopexy age ≤ 10

79.5% (31/39)

20.5% (8/39)

0^b

Orchidopexy age > 10

55.9% (19/34)

44.1% (15/34)

Mean testicular volume (Mean ± SD, ml)

7.1 ± 2.9

7.4 ± 2.4

0.7^c

FSH (Mean ± SD, IU/L)

26.9 ± 16.1

34.2 ± 20.1

0.2^c

LH (Mean ± SD, IU/L)

15.0 ± 8.0

17.8 ± 11.5

0.3^c

T (Mean ± SD, nmol/L)

16.2 ± 8.6

13.5 ± 6.2

0.2^c

Unilateral cryptorchidism

24% (12/50)

34.8% (8/23)

0.4^b

Bilateral cryptorchidism

76% (38/50)

65.2% (15/23)