… semen parameters observed in several other studies in young Chinese men. The semen
quality of the young Chinese men in our study … values of semen volume in our study (2.6 and …

… STUDY DESIGN, SIZE AND DURATION A coordinated, cross-sectional population-based
study … Comprehensive analyses of the associations between semen quality and measures of …

… Couples in the present study might have been more likely to have coitus in a fertile period …
including semen quality were not examined in the present study. Strengths of the study include …

… in semen quality. The objective of this study was to evaluate the temporal trends in semen
quality using routinely collected clinical laboratory data of 5739 men who attended the fertility …

… LIMITATIONS, REASONS FOR CAUTION: This study was based in a population-based …
Relation between semen quality and fertility: a population-based study of 430 first-pregnancy …

… and their relation to fecundity (… discussion referred to the selection of the population based
on TTP ≤12 months. This choice probably encompasses men with different degrees of fertility …

… could be identified, it might be possible to offer counselling on family planning and possible
early fertility intervention. Various factors have been studied for their influence or predictive …

… , A., Olsen, J., & Skakkebaek, NE (1998) Relation between semen quality and fertility: a
population-based study of 430 first-pregnancy planners. Lancet 352, 1172-1177. Bonifacio, M., …

… It is challenging to study semen quality, and many studies include men undergoing infertility
… men with both impaired semen quality and normal semen quality but infertility due to female …

… It is possible that the semen quality variation studied was not sufficient to have a detectable
… As seen in our study, there may be certain differences in fertility between the refusal group …