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Glenys Hughes


While it is recognised that the structure of sexual networks has a central role in transmission dynamics of sexually transmitted infections (STIs), it is difficult to obtain reliable data on sexual contacts between individuals. However, the venues where people recruit sexual partners may provide valuable information on sexual networks. As such, these are an increasingly important focus of STI surveillance and prevention. The observation that individuals may congregate at particular venues (for example, commercial sex workers in red light districts, men who have sex with men in gay bars and clubs) is the rationale for time-location sampling to obtain a representative sample of individuals from hidden populations. Information on these venues or “sexual affiliations” provides valuable data on the structure, especially of larger sexual networks, and tends to be more robust to biases in the sampling process than other forms of network data. Mathematical and statistical models of sexual affiliations are needed to help in the interpretation of such data. (Sex Transm Infect 2007;83(Suppl I):i37–i42)


Rates of head injuries necessitating hospitalisation among people aged 60 and older are increasing in Australia, a study has …

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