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Is the network of heterosexual contact in Japan scale free?


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Title: Is the network of heterosexual contact in Japan scale free?
Authors: Ito, Hiromu / Tamura, Kazuhiro / Wada, Takayuki / Yamamoto, Taro / Morita, Satoru
Issue Date: 27-Aug-2019
Publisher: Public Library of Science
Citation: PLoS ONE, 14(8), art.no.e0221520; 2019
Abstract: Elucidation of the structure of human sexual networks is not only an interesting topic in the area of social networks but also an important clue for understanding the spreading risk of sexually transmitted infections (STIs). Some previous studies have indicated that sexual networks are scale free, while others have suggested that they are not. We conducted a Web-based survey on sexual contact in Japan to collect data on cumulative (total) heterosexual partners and the number of recent (in the last three or previous three months) heterosexual partners. To determine whether the number of heterosexual contacts in Japan has a power-law tail, we used maximum likelihood fitting methods and Kolmogorov-Smirnov tests. For confirmation, we also used the Akaike information criterion (AIC) and the Bayesian information criterion (BIC). Our results indicate that the distributions of the number of sexual partners in Japan have power-law tails.
URI: http://hdl.handle.net/10069/39434
DOI: 10.1371/journal.pone.0221520
Rights: © 2019 Ito et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/39434

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