IMPACT OF ORGANOPHOSPHOROUS PESTICIDE EXPOSURE ON SEMEN QUALITY OF CHINESE PEASANTS
IMPACT OF ORGANOPHOSPHOROUS PESTICIDE EXPOSURE ON SEMEN QUALITY OF CHINESE PEASANTS
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摘要:
Aim: To investigate the impact of organophosphorous pesticide exposure and other risk factors on the semen quality of Chinese peasants. Method: Questionnaire investigation, external genital examination and laboratory examination were conducted on 322 male peasants, including the exposed and the control groups of 161 subjects each. Results: Multivariate analysis showed that the educational level and the years of alcohol drinking influenced the semen volume. Compared with subjects of primary school education or lower, those with junior high school education had a higher semen volume (OR=1.961). Proportion of subjects with higher semen volume decreased with increased years of alcohol drinking (OR=0.962). Organophosphorous pesticide exposure decreased the number of forward progression sperm (OR=0.528), the sperm density (OR=0.266), the sperm viability (OR=0.398) and the percentage of normal morphology sperm (OR=0.281). A possible relationship was present between the season of semen collection and the number