Semen quality of fertile Japanese men: a cross-sectional population-based study of 792 men
نویسندگان
چکیده
منابع مشابه
Semen quality of fertile Japanese men: a cross-sectional population-based study of 792 men
OBJECTIVES To establish a base line for future studies on temporal trends, to describe potential geographical differences in semen quality and reference values for studies of men from the general population. DESIGN Cross-sectional study of fertile men from four areas in Japan. Inclusion criteria were: age 20-45 years at the time of invitation, and both the man and his mother had to be born in...
متن کاملSemen quality of 324 fertile Japanese men.
BACKGROUND A number of studies have indicated regional differences in semen quality. To examine the current status in Japan, we undertook a cross-sectional study on the semen quality of fertile Japanese men for comparison with recent European results. METHODS Semen parameters of 324 fertile men from the Kawasaki/Yokohama area were investigated. The semen parameters were compared with those pu...
متن کاملSemen quality and reproductive hormones in Faroese men: a cross-sectional population-based study of 481 men
OBJECTIVES To determine semen quality and reproductive hormone levels in young Faroese men. DESIGN Descriptive cross-sectional study of Faroese men compared with Danish men. SETTING Faroese one-centre study. PARTICIPANTS 481 men born from 1981 to 1987 and investigated from 2007 to 2010. OUTCOME MEASURES Sperm concentration, semen volume, total sperm count, sperm motility, sperm morpholo...
متن کاملDietary Fats, Minerals and Semen Quality and Quantity among Men Attending a Fertility Clinic: A Cross-Sectional Study in Iran
Background: At least 50% of infertile couple's problems are related to male factor infertility and in many patients; nutritional problems have been related to decreased sperm quality. Thus, the present study aims to examine the association of dietary fat and mineral intake with semen quantity and quality. Methods: This cross-sectional study was conducted on 175 infertile men in Isfahan Infertil...
متن کاملSemen quality of 1559 young men from four cities in Japan: a cross-sectional population-based study
OBJECTIVES To provide information of semen quality among normal young Japanese men and indicate the frequency of reduced semen quality. DESIGN Cross-sectional, coordinated studies of Japanese young men included from university areas. The men had to be 18-24 years, and both the man and his mother had to be born in Japan. Background information was obtained from questionnaires. Standardised and...
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ژورنال
عنوان ژورنال: BMJ Open
سال: 2013
ISSN: 2044-6055,2044-6055
DOI: 10.1136/bmjopen-2012-002223