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Indonesia has the fourth largest population in the world, which could cause problems if it is not controlled properly. In response to this, the use of contraceptives is one way to regulate the population's birth rate. This study aims to determine the effect of knowledge and subjective norms on the intention of men with more than three children to use vasectomy contraception. This research is quantitative research with an analytical observational research design. This research uses a cross-sectional approach because the variables used in this research were taken at the same time. The population used in this research were men with more than three children who lived in Putat Jaya Village, Sawahan District, Surabaya, Indonesia. The variables in this research consist of independent and dependent variables. The independent variables in this study are knowledge and subjective norms, while the dependent variable in this study is the intention to use vasectomy contraception. The results of this study show that there is a significant effect between knowledge variables and subjective norms on the intention to use vasectomy contraception. The knowledge variable shows a significance value of 0.006 (<α=0.05), while the subjective norms variable shows a significance value of 0.000 (<α=0.05) or 31,778 times greater in influencing the intention to use contraception. In conclusion, knowledge and subjective norms affect the intention to use vasectomy contraception.
Amilia et al. (Wed,) studied this question.