[The analysis of the sperm parameters in view of its concentration and motility in relation to men's age and occupation].

OBJECTIVE: To evaluate chosen sperm parameters (concentration and progressive motility) in relation to men's age and occupation. MATERIAL AND METHODS: Retrospective study of laboratory records containing semen analysis results (n = 473, 1995-1997) of patients attending local andrology lab. Linear regression analyses was applied to co-related the age of the patients with the sperm concentration and progressive motility. Mean sperm counts and percentage of motile spermatozoa were compared in the general population vs. car drivers and soldiers. RESULTS: Sperm characteristics were not associated with the age of men. No differences between the general population, drivers and soldiers were found. The values of the mean sperm counts and percentage of motilile spermatozoa were higher than the cut-off values of the WHO. CONCLUSION: The data show no evidence of deterioration in sperm quality in relation to the age and occupation of patients.