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Table 3 Regression coefficients and probability values to determine the association between seminal parameters and exposure and time of exposure to methylated OP metabolites.

From: Semen quality in Peruvian pesticide applicators: association between urinary organophosphate metabolites and semen parameters

  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
  1. 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.
  2. +Analyses were performed after controlling for urine levels of methylated OP metabolites, respectively.