… also a risk of adult reproductive problems, such as testicular cancer and infertility (3, 4). …
Study Design and Participants This study is a prospective population-based birth cohort study as …

… morphology are considered more important for fertility than ejaculate volume [27]. … semen
quality parameters, we did not add this variable to our analysis, since all patients in this study …

… on proven fertility or on factors associated with impaired semen quality and relevant … study
is one of the largest on secular trend in semen quality worldwide. To our knowledge, this study …

… This is a cross-sectional population-based study of 6376 … This study is based on young
men from the greater … regarding fertility status and semen quality. The young men delivered a …

… For nearly half a century, male semen quality—worldwide—showed an obvious downward
trend [1]. Moreover, there has been a large quantity of literatures reporting that the morbidity …

… STUDY DESIGN, SIZE, DURATION In this population-based cohort study, we used data …
There was a rather low participation rate in the Fetal Programming of Semen Quality Cohort and …

… review recent studies on infertility, semen quality, cryptorchidism, … Population-based studies
of semen parameters in young … 25–44 yr reporting for their first pregnancy attempt (205). In a …

… in our study merits discussion, given that the study … studies of semen quality, which have
generally found inverse associations between total, saturated and trans-fat intakes and semen …

… Infertility in couples, but also poor male fecundity by itself, … In this large population-based
cohort study, we did not observe … directly measured in our study, semen quality and reproductive …

… in studies relying on volunteers to provide a semen sample … in studies of semen quality,
a risk of selection bias exists. … a newly established population-based male-offspring cohort. …