Table 2.

ROS levels in the culture media during IVF (n = 101) and ICSI (n = 60) cycles

Variable	IVF cycles (n = 101)	ICSI cycles (n = 60)	P value
Age (years)	34.2 ± 4.1	35.5 ± 5.2	NS
Day 1 ROS (cps) (sample)	69.9 ± 56.8 (n = 727)	51.2 ± 34.4 (n = 305)	< 0.001
Day 3 ROS (cps) (sample)	158.2 ± 142.2 (n = 687)	126.6 ± 117.3 (n = 297)	0.001
Day 5 ROS (cps) (sample)	64.1 ± 40.3 (n = 458)	68.9 ± 44.5 (n = 197)	NS

All values reported as mean ± SD

n number, NS not significant