Table 2: Results on motile sperm concentration in the PESA before and after letrozole treatment
  # Motile sperm
concentration
pre letrozole (x106)
Motile sperm
concentration
post letrozole (x106)
Fold of increase
in motile sperm
concentration
Percentage of increase in
motile sperm concentration
1 0.12 0.6 5.0 400%
2 0.06 0.22 3.7 267%
3 0.16 0.84 5.3 425%
4 0.03 0.1 3.3 233%
5 0.0001 0.00004 0.4 -60%
6 0.0001 1.6 16000.0 >500%
7 0.0001 0.6 6000.0 >500%
8 0.03 0.06 2.0 100%
9 0.12 0.03 0.3 -75%
10 0.02 0.06 3.0 200%
11 0.06 0.002 0.03 -97%
Mean±SD 0.06±0.06 0.4±0.5