Table 3

Regression coefficients and probability values to determine the association between seminal parameters and exposure and time of exposure to methylated OP metabolites.


Exposure to Pesticides (β ± SEM)
P
P* adjusted
Time of exposure to pesticides (β ± SEM)
P
P* adjusted

Time of liquefaction minutes
-1.15 ± 1.73
0.51
0.84
0.17 ± 0.30
0.56
0.95
Seminal Volume mL
-0.76 ± 0.32
0.02
0.12
-0.09 ± 0.06
0.14
0.29
pH
0.24 ± 0.09
0.01
0.002
0.03 ± 0.02
0.08
0.001
Log Corrected fructose
-0.17 ± 0.09
0.05
0.04
-0.04 ± 0.02
0.01
0.28
Log Seminal zinc
-0.05 ± 0.09
0.61
0.40
-0.03 ± 0.02
0.18
0.74
Log sperms/mL
-0.10 ± 0.12
0.43
1.00
-0.01 ± 0.02
0.51
0.76
Log sperms/ejaculum
-0.20 ± 0.12
0.171
0.5
-0.04 ± 0.03
0.12
0.84
Sperm Vitality %
2.20 ± 1.79
0.22
0.05
-0.21 ± 0.32
0.52
0.15
Log motility grade 3 (%)
-0.03 ± 0.09
0.73
0.90
-0.02 ± 0.01
0.18
1.00
Log motility grade 3 + 2 (%)
-0.05 ± 0.05
0.38
0.52
-0.01 ± 0.01
0.14
0.27
Sperm with normal morphology (%)
-7.03 ± 2.14
0.01
0.42
-0.86 ± 0.39
0.03
0.48
Immature sperm (%)
1.12 ± 1.51
0.46
1.00
0.14 ± 0.27
0.61
0.98
Log Seminal leucocytes
0.56 ± 0.09
0.01
0.68
0.02 ± 0.02
0.39
0.95
Serum testosterone (ng/mL)
-0.67 ± 0.41
0.10
0.59
-0.10 ± 0.07
0.19
1.00
Log Serum estradiol (pg/ml)
0.05 ± 0.07
0.45
0.21
0.03 ± 0.01
0.03
0.38
Log Serum FSH (mIU/mL)
-0.13 ± 0.18
0.46
0.89
0.01 ± 0.03
0.76
1.00
Log Serum LH (mIU/mL)
-0.40 ± 0.20
0.05
0.99
-0.11 ± 0.04
0.01
0.97
Log T/E2 (ng/pg)
-0.12 ± 0.07
0.11
0.18
-0.04 ± 0.01
0.01
0.56
Log T/LH (ng/mIU)
0.34 ± 0.20
0.09
1.00
0.10 ± 0.04
0.01
1.00

Regressions adjusted for age and alcohol consumption. Exposure to pesticide: 0 = non exposed; 1 = exposed. Ethylated metabolites of OPs: 0 = non detectable; 1 = over limit of detection. Time of exposure to pesticides (continuous variable). β ± SEM: Coefficient of regression ± Standard error of the mean. Data with non parametric behavior were log-transformed in order to performed linear regression analyses. *Holm's test adjustment.

+Analyses were performed after controlling for urine levels of methylated OP metabolites, respectively.

Yucra et al. Environmental Health 2008 7:59   doi:10.1186/1476-069X-7-59