Rate of methylation status in patients characterized histological diagnosis. Normal spermatogenesis controls (NS, closed circles, n=26), hypospermatogenesis (HS, closed squares, n=17), maturation arrest phenotype (MA, closed triangles, n=17), Sertoli cell only phenotype (SCO, inverted closed triangles, n=21) and tubular sclerosis (TS, closed diamonds, n=5). The asterisk indicates a statistically significant difference between values (P<0.05).