Table 2.

Correlations between ROS and sperm quality parameters

Parameters	r	p
Smoking frequency	0.113	0.091
Smoking duration	0.114	0.094
Age	−0.014	0.83
Sperm concentration	−0.429**	<0.01**
Semen volume	−0.147*	0.029
Sperm vitality	−0.412**	<0.01**
Sperm progressive motility	−0.558**	<0.01**
Sperm immotility	0.573**	<0.01**
Malformation rate	0.383	<0.01**
Histone transition abnormality	0.306**	<0.01**

**Correlation was significant at the 0.01 level (two-tailed)