Associations between tobacco inhalation and semen parameters in men with primary and secondary infertility: a cross-sectional study

Abstract excerpt

Objective To examine the impact of tobacco smoking on seminal parameters in men with both primary and secondary infertility. Methods This cross-sectional study analyzed 1938 infertile men from China who were categorized as nonsmokers (n=1,067) and smokers (n=871), with the latter group further divided into moderate smokers (1-10 cigarettes per day) (n=568) and heavy smokers (>10 cigarettes per day) (n=303). We...

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