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020 ▼a 9781085756501
035 ▼a (MiAaPQ)AAI22586996
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 910
1001 ▼a Hampton, Kristen Hui-Lin.
24510 ▼a Spatial Dynamics of Syphilis and Gonorrhea Transmission among Sexual Networks and Core Groups in North Carolina.
260 ▼a [S.l.]: ▼b The University of North Carolina at Chapel Hill., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 124 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-03, Section: B.
500 ▼a Advisor: Miller, William C.
5021 ▼a Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2019.
506 ▼a This item must not be sold to any third party vendors.
506 ▼a This item must not be added to any third party search indexes.
520 ▼a Syphilis and gonorrhea rates continue to increase and disproportionately affect vulnerable populations despite control efforts. Increased understanding of transmission dynamics in populations that sustain infection is urgently needed to better inform detection, surveillance, and control programs. We conducted spatial, latent class, and network analyses of de-identified and geomasked surveillance data from the North Carolina (NC) Division of Public Health to (1) evaluate the performance of proposed methods in identifying geographical core areas of syphilis and gonorrhea, (2) determine the relationship between syphilis core areas and the locations of individuals at high risk of onward transmission, and (3) characterize the relationship between social and geographical distances in a socio-sexual network associated with a syphilis outbreak in rural NC. In Aim 1, we used latent class analysis to estimate the sensitivity and specificity of four core area identification methods and found that accuracy varied by method and disease. For both gonorrhea and syphilis, the rate rank method combined the best overall accuracy with ease of implementation, suggesting it may be appropriate for most public health departments. In Aim 2, we used the results of Aim 1 and risk behavior data from disease intervention specialist interviews of reported syphilis cases to identify syphilis core areas and assess the probability of higher sexual activity among core areas cases compared to non-core area cases. We observed that higher activity cases were as likely to reside in non-core areas as core areas. While syphilis cases may be disproportionately concentrated in core areas, solely targeting interventions to core areas would unlikely lead to elimination due to transmission by high-activity core group members residing in non-core areas. In Aim 3, we found that spatially compact network structures depended on a complex interaction of characteristics not apparent at the individual or partnership levels. Despite being part of the same large outbreak, partnerships between similar persons formed distinct macro-level structures of varying spatial compactness that require different interventions to reduce transmission effectively. Multiple approaches are needed to help public health officials optimize intervention strategies and stem the current epidemic.
590 ▼a School code: 0153.
650 4 ▼a Epidemiology.
650 4 ▼a Public health.
650 4 ▼a Geographic information science.
690 ▼a 0766
690 ▼a 0573
690 ▼a 0370
71020 ▼a The University of North Carolina at Chapel Hill. ▼b Epidemiology.
7730 ▼t Dissertations Abstracts International ▼g 81-03B.
773 ▼t Dissertation Abstract International
790 ▼a 0153
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15492951 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK