Table 5.

The genotypes and alleles frequencies of TGF-β1 +869 C/T in the fertile and infertile male categories.

Seminogram categories	TGF- β1	Infertile males’ frequency (N/%)	Fertile males’ frequency (N/%)	RR	Preventive Fraction	P	95% CI
Normozoospermia	Genotype
	CC	8 (28.57%)	16 (40%)	0.60	0.6	0.41	0.22-1.66
	CT	19 (67.86%)	23 (57.5%)	1.56	0.24	0.45	0.58-4.22
	TT	1 (3.57%)	1 (2.5%)	1.44	0.01	1.00	0.09-23.09
	(CC+CT) vs TT	27 (96.43%)	39 (97.5%)	0.69	0.3	1.00	0.04-11.07
	(TT+CT) vs CC	20 (71.43%)	24 (60.0%)	1.67	0.28	0.44	0.60-4.62
	Allele
	C allele	35 (62.5%)	55 (68.75%)	0.76	0.16	0.46	0.37-1.55
	T allele	21 (37.5%)	25 (31.25%)	1.32	0.09	0.46	0.65-2.69
Oligozoospermia	Genotype
	CC	39 (51.32%)	16 (40%)	1.58	0.18	0.32	0.73-3.41
	CT	35 (46.05%)	23 (57.5%)	0.63	0.21	0.32	0.29-1.35
	TT	2 (2.63%)	1 (2.5%)	1.05	0.001	1.00	0.10-11.69
	(CC+CT) vs TT	74 (97.37%)	39 (97.5%)	0.95	0.05	1.00	0.09-10.52
	(TT+CT) vs CC	37 (48.68%)	24 (60.0%)	0.63	0.22	0.32	0.29-1.36
	Allele
	C allele	113 (74.34%)	55 (68.75%)	1.32	0.17	0.44	0.73-2.38
	T allele	39 (25.66%)	25 (31.25%)	0.76	0.07	0.44	0.42-1.37
Azoospermia	Genotype
	CC	28 (70%)	16 (40%)	3.50	0.5	0.013*	1.40-8.73
	CT	10 (25%)	23 (57.5%)	0.25	0.43	0.006**	0.10-0.63
	TT	2 (5%)	1 (2.5%)	2.05	0.02	1.00	0.18-22.88
	(CC+CT) vs TT	38 (95%)	39 (97.5%)	0.49	0.5	1.00	0.04-5.43
	(TT+CT) vs CC	12 (30%)	24 (60.0%)	0.29	0.42	0.013*	0.11-0.71
	Allele
	C allele	66 (82.5%)	55 (68.75%)	2.14	0.44	0.06	1.02-4.50
	T allele	14 (17.5%)	25 (31.25%)	0.47	0.16	0.06	0.22-0.98

RR: Relative risk, CI: Confidence Intervals, Exact Fishers Probability (P).