Walker A M, Jick H, Hunter J R, Danford A, Rothman K J
JAMA. 1981 Jun 12;245(22):2315-7.
Six thousand ninety-two men who had undergone vasectomy were observed for 20,491 person-years of observation in a prepaid group practice. The incidences of first-time hospitalizations for a variety of diagnoses were examined as a proxy for disease incidence rates and compared with similarly derived rates in the remaining male membership of the practice. Vasectomized men had comparatively high rates of hospitalization for a variety of diseases of the genitourinary system during the early postvasectomy period. Apart from these, there were no important, statistically convincing elevations in the new hospitalization rates among vasectomized men, as compared with those of the nonvasectomized comparison group.
在一个预付费用的团体医疗实践中，对6092名接受了输精管切除术的男性进行了20491人年的观察。对各种诊断的首次住院发生率进行了检查，以此作为疾病发病率的替代指标，并与该医疗实践中其余男性成员以类似方式得出的发病率进行比较。在输精管切除术后的早期，接受输精管切除术的男性因各种泌尿生殖系统疾病住院的发生率相对较高。除此之外，与未接受输精管切除术的对照组相比，接受输精管切除术的男性新的住院率没有出现重要的、具有统计学说服力的升高。
