RESUMO
The objective of the study was to assess the effect of some social characteristics on the forward progressive motion of sperms in males of infertile couples. The study was conducted in the Department of Obstetrics and Gynecology, King Kahlid University Hospital (KKUH), Riyadh, from September 1, 1994 to February 28, 1995. Semen specimens were obtained from 68 Saudi males of infertile couples, and 29 fertile males. Using computer-assisted semen analysis (CASA), sperm forward progressive motion was determined and graded on a scale of 1-4. The actuarial life table survival analysis method was used to investigate the sperm motility potentials across intervals 0-1, 1-2, 2-3, and 3-4 and the effect of smoking and coffee drinking was also determined on the sperm motility. Smoking was found to significantly improve sperm motility among the infertile group. Similarly, frequent coffee drinking was shown to enhance sperm motility. There is a need for further studies on the influence of smoking and coffee drinking, as well as the plethora of other influence of the daily life that may compound the detection of the subtle changes in semen quality.