Table 1.

Mean Number of Sperm (in Millions) Found in Urine Samples and Semen Samples at 1, 6, and 12 Weeks After Vasectomy

Sampling PeriodIntervention GroupControl GroupPValue
Note: Before cauterization, the prostatic end of the vas deferens was perfused with 10 mL normal saline on each side for patients in the intervention group (n = 50), while patients in the control group (n = 56) were not perfused. Statistical analysis was performed using the Mann-Whitney test.
Urine sample after vasectomy29.20.004<.001
1-week semen sample14.113.8>.05
6-week semen sample0.48.0>.05
12-week semen sample0.00.011>.05