A case-control study of risk factors for male infertility in Southern Nigeria

A case-control study of risk factors for male infertility in Nigeria.

AIM To evaluate the association between selected potential socio-demographic and behavioral risk factors and infertility in Nigerian men. METHODS There were two groups in this study. One group consisted of 150 men with proven male infertility, and the other consisted of 150 fertile men with normal semen parameters. Both were matched for age, place of residence and key socio-demographic variab...

A case-control study of the factors affecting male infertility.

BACKGROUND/AIM Infertility is defined as the inability to conceive after at least 1 year of unprotected intercourse. In about one third of infertile couples, a male factor is the primary problem. Thus, the present study aimed to determine the most common risk factors for male infertility in Iranian men. MATERIALS AND METHODS This case-control study included 268 men attending an infertility cl...

Medical Risk factors for dementia; A case-control study

Introduction: Dementia, the fifth cause of death in older adults with the most significant financial, social and caring burden on health systems across the world. Aim: to determine the most common medical risk factors for dementia in the retired population. Methods: A case-control methodology was utilized for this study, within which 180 established dementia patients compared to 371 controls ...

Maternal Risk Factors for Oral Clefts: A Case-Control Study

Introduction: A cleft lip with or without a cleft palate is one of the major congenital anomalies observed in newborns. This study explored the risk factors for oral clefts in Gorgan, Northern Iran.  Materials and Methods: This hospital-based case-control study was performed in three hospitals in Gorgan, Northern Iran between April 2006 and December 2009. The case group contained 33 newborns...

Main Risk Factors for Ectopic Pregnancy: A Case-Control Study in A Sample of Iranian Women