四川省医学院校学生双性性相关行为调查

目的：了解医学生双性性相关行为发生情况及其影响因素。方法：对四川省医学院校的2757名医学生进行问卷调查，采用多分类Logistic回归分析。结果：与异性、双性和同性有过拥抱、接吻、抚摸对方身体以及性行为的医学生分别为：15．4％、45．3％和19．6％；41．6％、2．8％和0．0％，20．6％；6．0％和5．8％，以及9．O％、0．5％和0．5％。拥抱、接吻、抚摸对方身体以及性行为发生的影响因素分别为：性别、家庭居住地、年级、学校所在地以及恋爱情况；家庭居住地、年级、学校所在地、母亲文化程度、每月生活费以及恋爱情况；性别、年龄、学校所在地、每月生活费以及恋爱情况；性别、年龄、母亲文化程度、每月生活费、学校所在地、恋爱情况。结论：男性、社会包容度高的环境、每月生活费较高者、恋爱者以及年长者异性性相关行为的发生率较高。双性、同性性行为不受社会包容度、经济状况以及恋爱与否的影响，存在偶遇性伴及商业性伴的可能。医学生中的双性性行为者很可能是将HIV从同性性行为者向异性性行为者传播的“桥梁”人群。

A Survey of Heterosexual and Homosexual Related Behaviors and Multinomial Logistic Analysis of Their Influencing Factors among Medical College Students

Objective： To analyze heterosexual and homosexual related behaviors and to find out their influencing＇factors among medical college students. Methods： A questionnaire was used to investigate 2757 students about their heterosexual and homosexual related behaviors, multi- nomial logistic analysis was applied. Results： Corresponding, 15.4% ,45.3% and 19.6% ,41.6% ,2.8% and 0.0% ,20.6% ,6.0% and 5. 8% ,and 9.0% ,0.5% and 0.5% reported that they hugged, kissed, touched bodies and had sexual intercourse with their friends with different, both different and same, and same sex. Hugging was influenced by gender, family location, grade, university location and in love （P 〈 0.01 ） , kissing was influenced by family location, grade, university location, mothers education, monthly expenditure and in love （P 〈 0.05 ） , touching was influenced by gender, age, university location, monthly expenditure and in love（ P 〈 0. 01 ） , having sexual intercourse was influenced by gender, grade, mothers＇education, monthly expenditure, university location, and in love （ P 〈 0.05 ）. Conclusion： Heterosexual related behaviors happen more among people who are male, living in open society, with high monthly expenditure, in love and with old age than among who are the opposites. Bisexual and homosexual related behaviors are not influenced by social inclusion, economic statuses, and whether in love or not, and the partners might be casual or commercial. Bisexual populations among medical college students are probably the ＂bridge populations＂ who transmit HIV from homosexual populations to heterosexual populations.