The study on the digit ratio between homosexuality and bisexuality in Kunming MSM population

LI Cai-xia; JIA Man-hong; MA Yan-ling; LUO Hong-bing; LI Qi; WANG Yu-miao; LI Zhen-hui; DING Wen-li; SONG Li-jun; ZHANG Ren-zhong; GUO Min; WEI Tao; LI Xiao-lan; CAO Lan; LU Lin

doi:10.16462/j.cnki.zhjbkz.2016.02.018

Volume 20 Issue 2

Feb. 2016

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Article Navigation > CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION > 2016 > 20(2): 177-179,187

LI Cai-xia, JIA Man-hong, MA Yan-ling, LUO Hong-bing, LI Qi, WANG Yu-miao, LI Zhen-hui, DING Wen-li, SONG Li-jun, ZHANG Ren-zhong, GUO Min, WEI Tao, LI Xiao-lan, CAO Lan, LU Lin. The study on the digit ratio between homosexuality and bisexuality in Kunming MSM population[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2016, 20(2): 177-179,187. doi: 10.16462/j.cnki.zhjbkz.2016.02.018

Citation:

LI Cai-xia, JIA Man-hong, MA Yan-ling, LUO Hong-bing, LI Qi, WANG Yu-miao, LI Zhen-hui, DING Wen-li, SONG Li-jun, ZHANG Ren-zhong, GUO Min, WEI Tao, LI Xiao-lan, CAO Lan, LU Lin. The study on the digit ratio between homosexuality and bisexuality in Kunming MSM population[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2016, 20(2): 177-179,187. doi: 10.16462/j.cnki.zhjbkz.2016.02.018

Citation:

LI Cai-xia, JIA Man-hong, MA Yan-ling, LUO Hong-bing, LI Qi, WANG Yu-miao, LI Zhen-hui, DING Wen-li, SONG Li-jun, ZHANG Ren-zhong, GUO Min, WEI Tao, LI Xiao-lan, CAO Lan, LU Lin. The study on the digit ratio between homosexuality and bisexuality in Kunming MSM population[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2016, 20(2): 177-179,187. doi: 10.16462/j.cnki.zhjbkz.2016.02.018

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The study on the digit ratio between homosexuality and bisexuality in Kunming MSM population

doi: 10.16462/j.cnki.zhjbkz.2016.02.018

1. School of Public Health, Kunming Medical University, Kunming 650500, China;
2. Institute of HIV/AIDS Prevention and Control, Yunnan Center for Disease Control and Prevention, Kunming 650031, China;
3. Dermatology Department, Yanan Hospital of Kunming Medical University, Kunming 650051, China

Received Date: 2015-09-07
Rev Recd Date: 2015-12-25

Abstract

Abstract

Objective To explore the characteristics of digit ratio between homosexuality and bisexuality in Kunming msm polulation, in order to reduce discrimination and to provide scientific evidence for targeted intervention measures. Methods Physical measurements were used to study digit ratio(2D:3D,2D:4D,2D:5D,3D:4D,3D:5D,4D:5D)of hands in 89 homosexuality,26 bisexuality and 115 controls. Results The 2D:4D and 2D:5D of MSM was higher than control. The mean values of digit ratio of MSM presented a trend as 2D:3D,2D:4D,2D:5D,3D:4D,3D:5D,4D:5D. According to the 2D:4D and 2D:5D, there was no significant difference between homosexual men and bisexual men (t₁=0.205,P₁=0.838;t₂=0.700,P₂=0.486). Conclusions Digit ratio (especially the 2D:4D of right hand) can reflect the individual prenatal testosterone level. The ratio was positively correlated with maternal pregnancy testosterone, and was negatively correlated with maternal pregnancy estrogen. So, the digit ratio is considered to be a prenatal individual biomarker which is affected by maternal pregnancy sex hormones. Low levels of testosterone and high levels of estrogen exposure during embryonic period could affect the individual's sexual orientation. However, using digit ratio cannot distinguish the homosexuals and bisexuals.
- Homosexuality, male,
- Epidemiologic studies,
- Control groups

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References(16)

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