Table 1

Table 3. Cytochemical sperm parameters of 2178 patients divided between the three men’s age groups.
Cytochemical Sperm Parameters	Age Groups
	Total	Group 1 (≤35 years)	Group 2 (36−44 years)	Group 3 (≥45 years)	p
	n=2178	n=852	n=1014	n=312
DNA fragmentation (%) (mean±SD)	15.4 ±8.5	14.7±8.3^a,b	15.9±8.7^a	16.2±8.4^b	^a0.002 ^b0.009
Mitochondrial damage (% abnormal MMP) (mean±SD)	25.9±16.4	24.6±16.4^a	25.6±16.0^b	29.0±17.1^a,b	^a0.006 ^b0.04
Chromatin packaging (% CMA₃positive) (mean ±SD)	56.1±15.2	57.7±15.0^a,b	55.7±15.1^a,c	52.9±15.6^b,c	^a0.01 ^b<0.001 ^c0.01
Apoptosis (%) (mean ± SD)	19.2±15.2	19.1±8.0	19.3±7.9	19.3±7.8	0.85