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18.
Lynge E. Prostate cancer is not increased in men with vasectomy
in denmark. J.Urol. 2002;168:488-90.
Abstract:
PURPOSE: The risk of prostate cancer after vasectomy was studied
using population based register data from Denmark. MATERIALS
AND METHODS: Men hospitalized for vasectomy in Denmark from
1977 to 1989 were followed for death, emigration and incident
cancer by administrative registers. The observed number of
patients with cancer in the cohort was divided by the number
expected based on the cancer incidence rate for all Danish
men, providing a standardized incidence ratio. RESULTS: A
total of 46 cohort patients were diagnosed with prostate cancer,
while 46.93 were expected (standardized incidence ratio 0.98,
95% confidence interval 0.7 to 1.3). Time since vasectomy
or age at vasectomy showed no trend. CONCLUSIONS: This population
based Danish cohort study indicated no increase in the risk
of prostate cancer in men hospitalized for vasectomy. The
study was free of reporting bias since all data were collected
from administrative registers. The cohort was not comprehensive
but it most likely represented an unbiased sample of Danish
men who underwent vasectomy. The study strongly adds to the
evidence that there is no excess prostate cancer risk after
vasectomy is done for sterilization
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