Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean (95% CI) of sperm concentration according to Western pattern by body mass index (BMI) level. Models are adjusted by smoking (current smoker versus not current smoker), ejaculation abstinence time (hours), total calorie intake (kcal/day) and BMI (kg/m2).
