We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Body mass index effects sperm quality: a retrospective study in Northern China.
- Authors
En-Yin Wang; Yan Huang; Qing-Yun Du; Gui-Dong Yao; Ying-Pu Sun
- Abstract
Excess weight and obesity have become a serious problem in adult men of reproductive age throughout the world. The purpose of this retrospective study was to assess the relationships between body mass index and sperm quality in subfertile couples in a Chinese Han population. Sperm analyses were performed and demographic data collected from 2384 male partners in subfertile couples who visited a reproductive medical center for treatment and preconception counseling. The subjects were classified into four groups according to their body mass index: underweight, normal, overweight, and obese. Of these subjects, 918 (38.3%) had a body mass index of >25.0 kg m-2. No significant differences were found between the four groups with respect to age, occupation, level of education, smoking status, alcohol use, duration of sexual abstinence, or the collection time of year for sperm. The results clearly indicated lower sperm quality (total sperm count, sperm concentration, motile sperm, relative amounts of type A motility, and progressive motility sperm [A + B]) in overweight and obese participants than in those with normal body mass index. Normal sperm morphology and sperm volume showed no clear difference between the four groups. This study indicates that body mass index has a negative effect on sperm quality in men of subfertile couples in a Northern Chinese population. Further study should be performed to investigate the relationship between body mass index and sperm quality in a larger population.
- Publication
Asian Journal of Andrology, 2017, Vol 19, Issue 2, p234
- ISSN
1008-682X
- Publication type
Article
- DOI
10.4103/1008-682X.169996