Regional differences in semen quality in Europe

Regional Differences and Temporal Trends in Semen Quality

Regional differences in presentation of AIDS in Europe.

Data were collected on 6578 patients diagnosed with AIDS at 52 clinical centres in 17 European countries during an 1-year period from 1979 to 1989. The centres were divided into four regions, North, Central, Southeast, and Southwest. Differences in the incidence of most AIDS-defining opportunistic infections and malignancies were found. After adjusting for known possible confounders, statistica...

Gender and regional differences in self-rated health in Europe∗

This paper shows that gender and regional differences in self-rated health in Europe are partly explained by differences in the prevalence of the various conditions. However, a nonnegligible part of these differences is due to other causes, which may include differences in reporting own health. We employ the tool of “anchoring vignettes” to understand whether and how women and men living in dif...

Gender and regional differences in perceived job stress across Europe.

BACKGROUND Over the last 20 years stress at work has been found to be predictive of several conditions such as coronary heart disease, high blood pressure and non-specific sick leave. The Karasek demand/control/strain concept has been the most widely used in prospective epidemiological studies. OBJECTIVES To describe distribution in Karasek's demand/control (DC) dimensions as well as prevalen...

Geographic differences in semen quality of fertile U.S. males.

Although geographic variation in semen quality has been reported, this is the first study in the United States to compare semen quality among study centers using standardized methods and strict quality control. We evaluated semen specimens from partners of 512 pregnant women recruited through prenatal clinics in four U.S. cities during 1999-2001; 91% of men provided two specimens. Sperm concent...