Table 1. Descriptive analyses of questionaries’ data, basic semen parameters, oxidative stress markers, and epididymal and accessory sex glands function markers at the different time points (TP).

	N	TP1				TP2				TP3
		Mean	SD	Minimum	Maximum	Mean	SD	Minimum	Maximum	Mean	SD	Minimum	Maximum
Alcohol consumption (g)	36	15.2	32.2	0.0	179.2	123.0	130.5	0.0	480.0	18.4	24.4	0.0	96.0
Nicotine consumption (mg)	36	1.0	2.4	0.0	8.4	2.0	3.8	0.0	14.4	1.3	2.9	0.0	12.0
Age (years)	36	22	3	18	32
Sexual abstinence (days)	32	2	3	0	10	2	3	0	13	3	4	0	20
Volume (mL)	36	3.9	1.9	1.0	9.0	3.2	2.0	0.7	9.0	2.6	1.4	1.0	6.0
Concentration (x106/mL)	36	61	37	20	155	53	39	7	194	49	41	10	241
Total number spermatozoa (x106)	36	236	189	40	775	169	198	16	1062	114	84	23	362
Progressive motility (%)	36	54	15	21	89	46	21	14	91	48	19	4	72
Non-progressive motility (%)	36	10	5	0	21	14	9	1	37	15	7	4	38
Immotile (%)	36	36	14	9	74	41	18	8	71	37	20	11	81
Normal morphology (%)	36	11	5	3	19	9	4	2	22	9	3	3	18
Head defects (%)	36	65	16	29	95	74	14	37	94	67	12	31	88
Midpiece defects (%)	36	25	14	6	49	34	14	2	69	32	13	16	60
Tail defects (%)	36	22	16	1	59	25	15	0	60	26	13	6	51
Total antioxidant capacity (TAS) (mmol/l)	22	1.44	0.75	0.27	2.63	1.65	0.64	0.37	2.58	1.69	0.69	0.07	2.52
3-Nitrotyrosine (3-NT) (AU)	24	110.94	130.15	0.42	383.33	138.54	152.94	0.39	419.37	99.88	106.52	0.27	273.19
Superoxide dismutase 1 (SOD1) (AU)	23	2.22	3.50	0.36	15.59	1.79	3.23	0.23	15.95	7.33	18.57	0.12	81.42
Glutathione peroxidase 4 (GPx4) (AU)	22	0.64	1.11	0.07	5.26	0.48	0.44	0.04	1.63	0.60	0.66	0.03	2.67
Carbonyl groups (CG) (AU)	12	130.06	85.27	56.27	362.25	139.43	86.09	76.69	392.99	107.92	35.18	68.01	172.59
Citric acid (mg)	12	13.60	6.30	5.87	25.55	12.10	8.86	4.31	36.74	8.65	3.61	4.24	13.65
Frutose (mg)	12	11.30	7.24	2.31	29.01	10.68	7.72	1.47	25.71	8.18	5.98	2.42	19.06
Neutral alfa-glucosidase (mIU)	12	57.07	45.17	21.27	190.42	47.26	40.98	5.97	138.46	30.90	30.42	6.42	122.74