TABLE 1.
Demographics |
Age (y) |
Partner’s age (y) |
Race/ethnicity |
Body mass index (kg/m2) |
Clinical |
Months of infertility |
Complete medical history |
Spermatotoxic medications and exposures |
Complete phenotyping of female infertility factors |
Comprehensive familial health history |
Anatomical |
Testis longitudinal axis (cm) |
Presence of varicocele and associated grade |
Scrotal ultrasound findings |
Hormones |
Follicle-stimulating hormone |
Luteinizing hormone |
Total, bioavailable, and free testosterone |
Sex hormone-binding globulin |
Estradiol |
Inhibin B |
Thyroid-stimulating hormone |
Prolactin |
Karyotype |
Y chromosome microdeletion |
Semen analysisa |
Volume (mL) |
Sperm count |
Sperm concentration (M/mL) |
% Motility |
% Progressive motility |
Total motile count |
Morphology (% normal) |
% Head defects |
% Neck/midpiece defects |
% Cytoplasmic defects |
% Tail defects |
At least two semen analyses, preferably three.