Table 2.

POLG genotype of varicocele patients and controls

Allele (number of CAG repeats)	Num. of alleles in varicocele patients					Number of alleles in controls	P- valuea
	Grade I		Grade II	Grade III	Total
8	0		0	0	0 (0%)	0 (0%)	-
9	1		3	1	5 (6.25%)	3 (4.8%)	0.7322
10	29		21	14	62 (77.5%)	54 (83.8%)	0.6425
11	2		2	7	11 (13.75%)	4 (13%)	0.2047
12	0		0	2	2 (2.5%)	0 (0%)	0.2156
Genotype	Number of varicocele patients					Number of controls
	Grade I	Grade II		Grade III	Total
10/10 Homozygous	12	8		3	23 (57.5%)	21 (70%)	0.6107
10 /≠10 Heterozygous	3	5		8	16 (40%)	9 (30%)	0.5497
≠10/≠10 Homozygous + Heterozygous	0	0		1	1 (2.5%)	0 (0%)	0.3890
Num. of samples	15	13		12	40	30

a: Difference between varicocele and control group