Table 1.

Clinical parameters in case and control groups.

Clinical Parameters	Case Group n = 30		Control Group n = 22		p
Age	35.23	±8.04	35.09	±5.71	0.81
years; mean. ± s.d
Body Mass Index (BMI)	26.45	±5.39	24.87	±2.69	0.44
kg/m2; mean. ± s.d
Duration of infertility	42.3	±42.7	38.3	±23.8	0.73
months; mean. ± s.d
Urological history	10	33.3	6	27.3	0.87
yes; (n, %)
Cryptorchidism	6	20.0	3	13.6
Varicocele	2	6.7	3	13.6
Testicular trauma	2	6.7	0	0.0
Orchi-epididymitis	0	0.0	0	0.0
Professional toxic exposure	8	26.7	5	22.7	1.0
yes; (n, %)
Tobacco consumption	15	50.0	12	54.5	0.97
yes; (n, %)
Alcohol consumption	23	76.7	19	86.3	0.60
yes; (n, %)
Marijuana consumption	6	20	1	4.5	0.23
yes; (n, %)

s.d: standard deviation; n: number; %: percent.