Objective: To examine the relationship between sperm chromatin defects, evaluated by the
flow cytometric (FCM) sperm chromatin structure assay (SCSA), and the probability of a
pregnancy in a menstrual cycle (fecundability). Design: Follow-up study. Setting: The
Section of Toxicology and Biomedical Sciences, ENEA Casaccia, Rome, Italy, and the
Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark. Patient
(s): Two hundred fifteen Danish first pregnancy planners with no previous knowledge of their …