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Korean Journal of Epidemiology 1984;6(1): 124-136.
정관수술이 미치는 심리적 성적 영향에 관한 환자-대조군 연구
허용, 김정순, 윤희섭, 양숙자, 이인숙
Case-control study on psychosexual impact of vasectomy
Yong Heo, Joung Soon Kim, Hee Sup Yoon, Sook Ja Yang, In Sook Lee
The objective of this research is to study psychosexual impacts of vasectomy by means of case-control study in order to provide more valid information on the subject because most of the similar studies have been criticized as having various methodological defects. In this study one hundred vasectomized men and their wives were randomly selected from a rural and semi-urban communities and matched with non-vasectomized neighbors of the cases to achieve higher validity of the data by isolating the impacts of vasectomy from a set of other possible confounding variables such as age, socioeconomic status and occupation. The study was carried out from the December 1983 to the January 1984. The most cases were vasectomized during the period between 1972 and 1979 according to the record obtained from the local family planning association. The information were collected by interviewing husband and wife at the same time but separately to minimize bias that might occur from mutual communication prior to the interview. The summary of the results obtained are as followings: 1. General characteristics of the subjects studied 1) At the time of vasectomy the mean age was 34.4 years and the average number of children and son was 3.2 and 1.7 respectively. The mean duration of marriage till the vasectomy was 8.9 year. The average number of son at the time of the study was 1.7 for the case group contrast to 1.5 for the control group of which difference was statistically significant (p=0.035) although the total number of children was the same. 2) There was no difference between the case and control groups in the level of education and occupation. 3) The motivation of the sterilization stated by the cases of vasectomy was enough number of children and economic reason in 70.8%. The reason of selecting vasectomy among other contraceptive methods were the simplicity, low failure rate and less complication of the vasectomy in the majority of the cases (85.2%). 2. Psychosexual impacts of vasectomy 1) In psychosexual impacts classified into four categories, i.e. tiredness of sex, sxiness, frequency of coitus and sexual satisfaction, the proportion of husband reporting ‘No Change’ was significantly less at the time of interview than the time 2-3 years right after the vasectomy. On the other hand, in both sexiness and coitus frequency the proportion of husband reporting ‘Decreased’ were significantly higher at the time of interview than the time 2-3 years after the vasectomy. 2) Responses of husband and wife on the husband’s psychosexual change at the time of interview in case and control groups showed that the proportion of couples reporting ‘No Change’ was higher, and reporting 'Decreased' was lower in case group than in control group. Particularly the differences in the sexiness and frequency of coitus between the case and control groups were statistically significant (p=0.005) being decreased more in control group. 3) The proportion of husband reporting 'Decreased’ in sexual activities was positively in proportion to the age whereas the proportion reporting ‘No Change’ was negatively in proportion to the age for both case and control groups. 4) The agreement rate between the responses of husband and wife on the husband’s psychosexual change was low for both case and control couples (overall value of kappa=0.21-0.37).


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