Objective To assess semen parameters and couple fecundity as measured by time to
pregnancy (TTP). Design Observational prospective cohort with longitudinal measurement …

STUDY QUESTION What thresholds for total sperm count, sperm concentration, progressive
motility, and total progressive motile sperm count (TPMC) are associated with earlier time-to …

BACKGROUND: In fertile populations, little is known about the association between semen
parameters and time to pregnancy (TTP). METHODS: Pregnant women from Copenhagen …

Objective To study the relationship between semen quality and pregnancy loss in a cohort of
couples attempting to conceive. Design Observational prospective cohort. Setting Not …

Measures of semen quality are used as surrogate measures of male fertility in clinical
andrology, reproductive toxicology, epidemiology, and risk assessment. However, only …

Background To investigate the relationship of human semen parameters with season, age
and smoking status. Methods The present study used data from subjects recruited into an …

OBJECTIVE: To examine the association between stressful life events and semen
parameters. DESIGN: Cross-sectional analysis in a pregnancy cohort study. SETTING …

The objective of this study was to investigate the relationship between couples' fertility
potential and several parameters of semen analysis (from a single semen sample/male …

Some studies suggest a relationship between semen quality and pregnancy rates of
assisted reproduction technologies (ART). Others have questioned the utility of semen …

STUDY QUESTION What is the relationship between semen parameters and mortality in
men evaluated for infertility? SUMMARY ANSWER Among men undergoing an infertility …