Trends in sperm count in Finnish men

Is smoking related to lower sperm count in men?

P-42: Declining Trends in Sperm Qualityof Infertile Tunisian Men: A Possible Role of Genital Tract Infections

Background: Declines in semen quality over time are not well understood. It is suspected that infectious disease may affect reproductive function. The aim of this study was to investigate semen quality in men in infertile relationships who were under investigation for couple infertility and attended a clinic for routine semen analysis over a period of 15years. Materials and Methods: We investig...

Decline in sperm count in European men during the past 50 years.

PURPOSE To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time. MATERIALS AND METHODS We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men. RESULTS A time-dependent decline of sperm concentration ( r = -0.307, p = 0.02) in the last 50 years and an overall 32.5%...

Trends in prevalence of asthma and allergy in Finnish young men: nationwide study, 1966-2003.

Recent reports on time trends in atopic disease suggest that the prevalence of asthma and allergic rhinitis has levelled off in some European countries after several decades of increasing. 2 We reported earlier that the prevalence of asthma in young Finnish men remained stable from 1926 to 1961 but started to rise steeply during the 1960s; a sixfold, virtually linear increase in asthma prevalen...

Temporal trends in sperm count: a systematic review and meta-regression analysis.

BACKGROUND Reported declines in sperm counts remain controversial today and recent trends are unknown. A definitive meta-analysis is critical given the predictive value of sperm count for fertility, morbidity and mortality. OBJECTIVE AND RATIONALE To provide a systematic review and meta-regression analysis of recent trends in sperm counts as measured by sperm concentration (SC) and total sper...