Semen quality and cigarette smoking in a cohort of healthy fertile men.

ABSTRACT:

Background

Numerous health effects of smoking are well-known; associations with semen quality are uncertain. Most previous studies did not adjust for potential confounders and had limited information on age at smoking initiation or smoking cessation.

Methods

We investigated 1,631 healthy fertile men in the Nanjing Medical University Longitudinal Investigation of Fertility and the Environment (NMU-LIFE) study. Relationships were examined using multivariable linear regression controlling for potential covariates.

Results

We found a significant decrease in semen volume (β = -0.10, P = 0.001) and total sperm count (β = -0.42, P = 0.037), and significant increase in total motility (β = 6.02, P = 0.037) and progressive motility (

SUBMITTER: Tang Q 

PROVIDER: S-EPMC6693933 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature