Association of occupations with decreased semen quality in eastern China: a cross-sectional study of 12 301 semen donors.

ABSTRACT:

Objectives

This study aims to examine the association between occupational factors and semen quality in semen donors in eastern China.

Methods

We recruited 12 301 semen donors from 2006 to 2020 as the studying population. A self-designed questionnaire was applied for collecting lifestyle and work style information. Semen samples were analysed according to WHO guidelines. A crude and adjusted linear regression model was used to analyse the association between occupational factors and semen quality.

Results

College students accounted for 36.2% of all semen donors. The majority (81.3%) of semen donors were between 18 year and 30 years. Soldiers or the police had the highest semen volume (the median value=3.8 mL), however, they had the lowest sperm concentration (53.6×10<

SUBMITTER: Tang F 

PROVIDER: S-EPMC9422844 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature