Table 2. Comparison of cell free DNA content between experimental groups and control
Groups Experimental groups Control group p-Value
Cell free
DNA content
OATa
(N=10)
OTb
(N=10)
OAc
(N=10)
Azoospermiad
(N=50)
Normospermiae
(N=20)
0.11±0.04
(10-3-0.4)
0.02±0.01
(10-4-0.14)
0.05±0.02
(10-4-0.15)
0.01±0.003
(10-4-0.09)
0.05±0.02
(0.005-0.4)
a,e: 0.12
b,e: 0.17
c,e: 0.51
d,e: 0.01
f,e: 0.01
g,e: 0.58
f,g: 0.69
Negative
sperm
retrievalf
Positive
sperm
retrievalg
0.01±0.004
(10-4-0.09)
0.01±0.002
(10-3-0.03)

Samples included in this study were non-normally distributed (non-parametric) according to the values of the skewedness test, Kurtosis test, Z-value and Shapiro test. Data were presented as Mean ± SEM and min-max. The Kruskal-Wallis H test was used to determine if there are statistically significant differences between all groups and Mann-Whitney test was used to compare between two groups. OAT, Oligoasthenoteratozoospermia; OA, Oligoasthenospermia; OT, oligoteratozoospermia, p<0.05 was considered as significant values.